Home / 13,711.35-18,921.78-8,046.18

Finding the Fourth Proportional to 13,711.35, 18,921.78 and 8,046.18

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Solution

The fourth proportional to 13,711.35, 18,921.78 and 8,046.18 is: 11,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.35 : 18,921.78 = 8,046.18 : x
  2. Step 2: Convert to fraction form
    13,711.35/18,921.78 = 8,046.18/x
  3. Step 3: Cross multiply
    13,711.35x = 18,921.78 × 8,046.18
  4. Step 4: Simplify right side
    13,711.35x = 152,248,047.80
  5. Step 5: Solve for x
    x = 152,248,047.80/13,711.35
  6. Step 6: Final answer
    x = 11,103.80

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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.