Home / 12,397.35-18,594.95-7,200.39

Finding the Fourth Proportional to 12,397.35, 18,594.95 and 7,200.39

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Solution

The fourth proportional to 12,397.35, 18,594.95 and 7,200.39 is: 10,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,397.35 : 18,594.95 = 7,200.39 : x
  2. Step 2: Convert to fraction form
    12,397.35/18,594.95 = 7,200.39/x
  3. Step 3: Cross multiply
    12,397.35x = 18,594.95 × 7,200.39
  4. Step 4: Simplify right side
    12,397.35x = 133,890,856.03
  5. Step 5: Solve for x
    x = 133,890,856.03/12,397.35
  6. Step 6: Final answer
    x = 10,799.96

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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.