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Finding the Fourth Proportional to 15,652.60, 21,601.11 and 8,579.02

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Solution

The fourth proportional to 15,652.60, 21,601.11 and 8,579.02 is: 11,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,652.60 : 21,601.11 = 8,579.02 : x
  2. Step 2: Convert to fraction form
    15,652.60/21,601.11 = 8,579.02/x
  3. Step 3: Cross multiply
    15,652.60x = 21,601.11 × 8,579.02
  4. Step 4: Simplify right side
    15,652.60x = 185,316,354.71
  5. Step 5: Solve for x
    x = 185,316,354.71/15,652.60
  6. Step 6: Final answer
    x = 11,839.33

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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.