Home / 15,370.56-21,211.92-9,404.88

Finding the Fourth Proportional to 15,370.56, 21,211.92 and 9,404.88

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Solution

The fourth proportional to 15,370.56, 21,211.92 and 9,404.88 is: 12,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.56 : 21,211.92 = 9,404.88 : x
  2. Step 2: Convert to fraction form
    15,370.56/21,211.92 = 9,404.88/x
  3. Step 3: Cross multiply
    15,370.56x = 21,211.92 × 9,404.88
  4. Step 4: Simplify right side
    15,370.56x = 199,495,562.17
  5. Step 5: Solve for x
    x = 199,495,562.17/15,370.56
  6. Step 6: Final answer
    x = 12,979.07

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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.