Home / 19,437.56-29,159.76-12,869.12

Finding the Fourth Proportional to 19,437.56, 29,159.76 and 12,869.12

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Solution

The fourth proportional to 19,437.56, 29,159.76 and 12,869.12 is: 19,305.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,437.56 : 29,159.76 = 12,869.12 : x
  2. Step 2: Convert to fraction form
    19,437.56/29,159.76 = 12,869.12/x
  3. Step 3: Cross multiply
    19,437.56x = 29,159.76 × 12,869.12
  4. Step 4: Simplify right side
    19,437.56x = 375,260,450.61
  5. Step 5: Solve for x
    x = 375,260,450.61/19,437.56
  6. Step 6: Final answer
    x = 19,305.94

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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.