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Finding the Fourth Proportional to 15,805.64, 23,689.02 and 8,010.20

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Solution

The fourth proportional to 15,805.64, 23,689.02 and 8,010.20 is: 12,005.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.64 : 23,689.02 = 8,010.20 : x
  2. Step 2: Convert to fraction form
    15,805.64/23,689.02 = 8,010.20/x
  3. Step 3: Cross multiply
    15,805.64x = 23,689.02 × 8,010.20
  4. Step 4: Simplify right side
    15,805.64x = 189,753,788.00
  5. Step 5: Solve for x
    x = 189,753,788.00/15,805.64
  6. Step 6: Final answer
    x = 12,005.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.