Home / 13,575.80-20,366.67-5,678.68

Finding the Fourth Proportional to 13,575.80, 20,366.67 and 5,678.68

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Solution

The fourth proportional to 13,575.80, 20,366.67 and 5,678.68 is: 8,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.80 : 20,366.67 = 5,678.68 : x
  2. Step 2: Convert to fraction form
    13,575.80/20,366.67 = 5,678.68/x
  3. Step 3: Cross multiply
    13,575.80x = 20,366.67 × 5,678.68
  4. Step 4: Simplify right side
    13,575.80x = 115,655,819.53
  5. Step 5: Solve for x
    x = 115,655,819.53/13,575.80
  6. Step 6: Final answer
    x = 8,519.26

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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.