Home / 13,799.92-20,562.77-13,130.44

Finding the Fourth Proportional to 13,799.92, 20,562.77 and 13,130.44

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Solution

The fourth proportional to 13,799.92, 20,562.77 and 13,130.44 is: 19,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.92 : 20,562.77 = 13,130.44 : x
  2. Step 2: Convert to fraction form
    13,799.92/20,562.77 = 13,130.44/x
  3. Step 3: Cross multiply
    13,799.92x = 20,562.77 × 13,130.44
  4. Step 4: Simplify right side
    13,799.92x = 269,998,217.72
  5. Step 5: Solve for x
    x = 269,998,217.72/13,799.92
  6. Step 6: Final answer
    x = 19,565.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.