Home / 15,010.57-20,714.61-9,042.49

Finding the Fourth Proportional to 15,010.57, 20,714.61 and 9,042.49

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Solution

The fourth proportional to 15,010.57, 20,714.61 and 9,042.49 is: 12,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.57 : 20,714.61 = 9,042.49 : x
  2. Step 2: Convert to fraction form
    15,010.57/20,714.61 = 9,042.49/x
  3. Step 3: Cross multiply
    15,010.57x = 20,714.61 × 9,042.49
  4. Step 4: Simplify right side
    15,010.57x = 187,311,653.78
  5. Step 5: Solve for x
    x = 187,311,653.78/15,010.57
  6. Step 6: Final answer
    x = 12,478.65

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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.