Home / 18,775.08-28,158.54-5,623.92

Finding the Fourth Proportional to 18,775.08, 28,158.54 and 5,623.92

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Solution

The fourth proportional to 18,775.08, 28,158.54 and 5,623.92 is: 8,434.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.08 : 28,158.54 = 5,623.92 : x
  2. Step 2: Convert to fraction form
    18,775.08/28,158.54 = 5,623.92/x
  3. Step 3: Cross multiply
    18,775.08x = 28,158.54 × 5,623.92
  4. Step 4: Simplify right side
    18,775.08x = 158,361,376.28
  5. Step 5: Solve for x
    x = 158,361,376.28/18,775.08
  6. Step 6: Final answer
    x = 8,434.66

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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.