Home / 13,342.81-18,414.03-7,374.35

Finding the Fourth Proportional to 13,342.81, 18,414.03 and 7,374.35

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Solution

The fourth proportional to 13,342.81, 18,414.03 and 7,374.35 is: 10,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.81 : 18,414.03 = 7,374.35 : x
  2. Step 2: Convert to fraction form
    13,342.81/18,414.03 = 7,374.35/x
  3. Step 3: Cross multiply
    13,342.81x = 18,414.03 × 7,374.35
  4. Step 4: Simplify right side
    13,342.81x = 135,791,438.52
  5. Step 5: Solve for x
    x = 135,791,438.52/13,342.81
  6. Step 6: Final answer
    x = 10,177.13

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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.