Home / 18,772.08-28,154.04-5,620.92

Finding the Fourth Proportional to 18,772.08, 28,154.04 and 5,620.92

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Solution

The fourth proportional to 18,772.08, 28,154.04 and 5,620.92 is: 8,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,772.08 : 28,154.04 = 5,620.92 : x
  2. Step 2: Convert to fraction form
    18,772.08/28,154.04 = 5,620.92/x
  3. Step 3: Cross multiply
    18,772.08x = 28,154.04 × 5,620.92
  4. Step 4: Simplify right side
    18,772.08x = 158,251,606.52
  5. Step 5: Solve for x
    x = 158,251,606.52/18,772.08
  6. Step 6: Final answer
    x = 8,430.16

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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.