Home / 13,145.38-19,724.55-9,274.66

Finding the Fourth Proportional to 13,145.38, 19,724.55 and 9,274.66

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Solution

The fourth proportional to 13,145.38, 19,724.55 and 9,274.66 is: 13,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.38 : 19,724.55 = 9,274.66 : x
  2. Step 2: Convert to fraction form
    13,145.38/19,724.55 = 9,274.66/x
  3. Step 3: Cross multiply
    13,145.38x = 19,724.55 × 9,274.66
  4. Step 4: Simplify right side
    13,145.38x = 182,938,494.90
  5. Step 5: Solve for x
    x = 182,938,494.90/13,145.38
  6. Step 6: Final answer
    x = 13,916.56

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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.