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Finding the Fourth Proportional to 8,993.89, 12,415.62 and 6,599.63

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Solution

The fourth proportional to 8,993.89, 12,415.62 and 6,599.63 is: 9,110.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.89 : 12,415.62 = 6,599.63 : x
  2. Step 2: Convert to fraction form
    8,993.89/12,415.62 = 6,599.63/x
  3. Step 3: Cross multiply
    8,993.89x = 12,415.62 × 6,599.63
  4. Step 4: Simplify right side
    8,993.89x = 81,938,465.22
  5. Step 5: Solve for x
    x = 81,938,465.22/8,993.89
  6. Step 6: Final answer
    x = 9,110.46

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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.