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Finding the Fourth Proportional to 9,489.83, 13,066.97 and 8,599.84

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Solution

The fourth proportional to 9,489.83, 13,066.97 and 8,599.84 is: 11,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.83 : 13,066.97 = 8,599.84 : x
  2. Step 2: Convert to fraction form
    9,489.83/13,066.97 = 8,599.84/x
  3. Step 3: Cross multiply
    9,489.83x = 13,066.97 × 8,599.84
  4. Step 4: Simplify right side
    9,489.83x = 112,373,851.28
  5. Step 5: Solve for x
    x = 112,373,851.28/9,489.83
  6. Step 6: Final answer
    x = 11,841.50

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Half scale
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Double scale
Find fourth proportional to 9,490.83, 13,068.35 and 8,600.84
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.