Home / 19,613.31-29,412.18-7,126.52

Finding the Fourth Proportional to 19,613.31, 29,412.18 and 7,126.52

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Solution

The fourth proportional to 19,613.31, 29,412.18 and 7,126.52 is: 10,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.31 : 29,412.18 = 7,126.52 : x
  2. Step 2: Convert to fraction form
    19,613.31/29,412.18 = 7,126.52/x
  3. Step 3: Cross multiply
    19,613.31x = 29,412.18 × 7,126.52
  4. Step 4: Simplify right side
    19,613.31x = 209,606,341.95
  5. Step 5: Solve for x
    x = 209,606,341.95/19,613.31
  6. Step 6: Final answer
    x = 10,686.95

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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.