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Finding the Fourth Proportional to 15,042.99, 20,760.50 and 8,329.24

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Solution

The fourth proportional to 15,042.99, 20,760.50 and 8,329.24 is: 11,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,042.99 : 20,760.50 = 8,329.24 : x
  2. Step 2: Convert to fraction form
    15,042.99/20,760.50 = 8,329.24/x
  3. Step 3: Cross multiply
    15,042.99x = 20,760.50 × 8,329.24
  4. Step 4: Simplify right side
    15,042.99x = 172,919,210.28
  5. Step 5: Solve for x
    x = 172,919,210.28/15,042.99
  6. Step 6: Final answer
    x = 11,495.00

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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.