Home / 12,943.59-19,399.17-5,539.38

Finding the Fourth Proportional to 12,943.59, 19,399.17 and 5,539.38

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Solution

The fourth proportional to 12,943.59, 19,399.17 and 5,539.38 is: 8,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943.59 : 19,399.17 = 5,539.38 : x
  2. Step 2: Convert to fraction form
    12,943.59/19,399.17 = 5,539.38/x
  3. Step 3: Cross multiply
    12,943.59x = 19,399.17 × 5,539.38
  4. Step 4: Simplify right side
    12,943.59x = 107,459,374.31
  5. Step 5: Solve for x
    x = 107,459,374.31/12,943.59
  6. Step 6: Final answer
    x = 8,302.13

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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.