Home / 13,437.52-20,148.88-6,419.30

Finding the Fourth Proportional to 13,437.52, 20,148.88 and 6,419.30

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Solution

The fourth proportional to 13,437.52, 20,148.88 and 6,419.30 is: 9,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.52 : 20,148.88 = 6,419.30 : x
  2. Step 2: Convert to fraction form
    13,437.52/20,148.88 = 6,419.30/x
  3. Step 3: Cross multiply
    13,437.52x = 20,148.88 × 6,419.30
  4. Step 4: Simplify right side
    13,437.52x = 129,341,695.91
  5. Step 5: Solve for x
    x = 129,341,695.91/13,437.52
  6. Step 6: Final answer
    x = 9,625.41

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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.