Home / 15,178.46-20,937.25-11,815.95

Finding the Fourth Proportional to 15,178.46, 20,937.25 and 11,815.95

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Solution

The fourth proportional to 15,178.46, 20,937.25 and 11,815.95 is: 16,298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.46 : 20,937.25 = 11,815.95 : x
  2. Step 2: Convert to fraction form
    15,178.46/20,937.25 = 11,815.95/x
  3. Step 3: Cross multiply
    15,178.46x = 20,937.25 × 11,815.95
  4. Step 4: Simplify right side
    15,178.46x = 247,393,499.14
  5. Step 5: Solve for x
    x = 247,393,499.14/15,178.46
  6. Step 6: Final answer
    x = 16,298.99

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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.