Home / 13,785.40-20,677.98-3,397.24

Finding the Fourth Proportional to 13,785.40, 20,677.98 and 3,397.24

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Solution

The fourth proportional to 13,785.40, 20,677.98 and 3,397.24 is: 5,095.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.40 : 20,677.98 = 3,397.24 : x
  2. Step 2: Convert to fraction form
    13,785.40/20,677.98 = 3,397.24/x
  3. Step 3: Cross multiply
    13,785.40x = 20,677.98 × 3,397.24
  4. Step 4: Simplify right side
    13,785.40x = 70,248,060.78
  5. Step 5: Solve for x
    x = 70,248,060.78/13,785.40
  6. Step 6: Final answer
    x = 5,095.83

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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.