Home / 11,319.57-15,635.97-9,437.31

Finding the Fourth Proportional to 11,319.57, 15,635.97 and 9,437.31

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Solution

The fourth proportional to 11,319.57, 15,635.97 and 9,437.31 is: 13,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.57 : 15,635.97 = 9,437.31 : x
  2. Step 2: Convert to fraction form
    11,319.57/15,635.97 = 9,437.31/x
  3. Step 3: Cross multiply
    11,319.57x = 15,635.97 × 9,437.31
  4. Step 4: Simplify right side
    11,319.57x = 147,561,496.04
  5. Step 5: Solve for x
    x = 147,561,496.04/11,319.57
  6. Step 6: Final answer
    x = 13,035.96

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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.