Home / 13,371.28-18,452.80-7,705.58

Finding the Fourth Proportional to 13,371.28, 18,452.80 and 7,705.58

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Solution

The fourth proportional to 13,371.28, 18,452.80 and 7,705.58 is: 10,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.28 : 18,452.80 = 7,705.58 : x
  2. Step 2: Convert to fraction form
    13,371.28/18,452.80 = 7,705.58/x
  3. Step 3: Cross multiply
    13,371.28x = 18,452.80 × 7,705.58
  4. Step 4: Simplify right side
    13,371.28x = 142,189,526.62
  5. Step 5: Solve for x
    x = 142,189,526.62/13,371.28
  6. Step 6: Final answer
    x = 10,633.95

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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.