Home / 13,917.47-20,878.82-5,598.13

Finding the Fourth Proportional to 13,917.47, 20,878.82 and 5,598.13

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Solution

The fourth proportional to 13,917.47, 20,878.82 and 5,598.13 is: 8,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.47 : 20,878.82 = 5,598.13 : x
  2. Step 2: Convert to fraction form
    13,917.47/20,878.82 = 5,598.13/x
  3. Step 3: Cross multiply
    13,917.47x = 20,878.82 × 5,598.13
  4. Step 4: Simplify right side
    13,917.47x = 116,882,348.61
  5. Step 5: Solve for x
    x = 116,882,348.61/13,917.47
  6. Step 6: Final answer
    x = 8,398.25

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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.