Home / 9,305.40-12,841.44-5,326.60

Finding the Fourth Proportional to 9,305.40, 12,841.44 and 5,326.60

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Solution

The fourth proportional to 9,305.40, 12,841.44 and 5,326.60 is: 7,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,305.40 : 12,841.44 = 5,326.60 : x
  2. Step 2: Convert to fraction form
    9,305.40/12,841.44 = 5,326.60/x
  3. Step 3: Cross multiply
    9,305.40x = 12,841.44 × 5,326.60
  4. Step 4: Simplify right side
    9,305.40x = 68,401,214.30
  5. Step 5: Solve for x
    x = 68,401,214.30/9,305.40
  6. Step 6: Final answer
    x = 7,350.70

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Half scale
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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.