Home / 12,470.50-18,685.19-11,184.42

Finding the Fourth Proportional to 12,470.50, 18,685.19 and 11,184.42

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Solution

The fourth proportional to 12,470.50, 18,685.19 and 11,184.42 is: 16,758.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.50 : 18,685.19 = 11,184.42 : x
  2. Step 2: Convert to fraction form
    12,470.50/18,685.19 = 11,184.42/x
  3. Step 3: Cross multiply
    12,470.50x = 18,685.19 × 11,184.42
  4. Step 4: Simplify right side
    12,470.50x = 208,983,040.70
  5. Step 5: Solve for x
    x = 208,983,040.70/12,470.50
  6. Step 6: Final answer
    x = 16,758.20

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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.