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Finding the Fourth Proportional to 10,606.60, 15,989.29 and 9,892.99

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Solution

The fourth proportional to 10,606.60, 15,989.29 and 9,892.99 is: 14,913.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,606.60 : 15,989.29 = 9,892.99 : x
  2. Step 2: Convert to fraction form
    10,606.60/15,989.29 = 9,892.99/x
  3. Step 3: Cross multiply
    10,606.60x = 15,989.29 × 9,892.99
  4. Step 4: Simplify right side
    10,606.60x = 158,181,886.08
  5. Step 5: Solve for x
    x = 158,181,886.08/10,606.60
  6. Step 6: Final answer
    x = 14,913.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.