Home / 16,518.08-22,780.24-12,885.04

Finding the Fourth Proportional to 16,518.08, 22,780.24 and 12,885.04

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Solution

The fourth proportional to 16,518.08, 22,780.24 and 12,885.04 is: 17,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,518.08 : 22,780.24 = 12,885.04 : x
  2. Step 2: Convert to fraction form
    16,518.08/22,780.24 = 12,885.04/x
  3. Step 3: Cross multiply
    16,518.08x = 22,780.24 × 12,885.04
  4. Step 4: Simplify right side
    16,518.08x = 293,524,303.61
  5. Step 5: Solve for x
    x = 293,524,303.61/16,518.08
  6. Step 6: Final answer
    x = 17,769.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.