Home / 12,928.60-19,397.76-4,166.02

Finding the Fourth Proportional to 12,928.60, 19,397.76 and 4,166.02

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Solution

The fourth proportional to 12,928.60, 19,397.76 and 4,166.02 is: 6,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.60 : 19,397.76 = 4,166.02 : x
  2. Step 2: Convert to fraction form
    12,928.60/19,397.76 = 4,166.02/x
  3. Step 3: Cross multiply
    12,928.60x = 19,397.76 × 4,166.02
  4. Step 4: Simplify right side
    12,928.60x = 80,811,456.12
  5. Step 5: Solve for x
    x = 80,811,456.12/12,928.60
  6. Step 6: Final answer
    x = 6,250.60

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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.