Home / 13,518.97-20,278.15-6,118.07

Finding the Fourth Proportional to 13,518.97, 20,278.15 and 6,118.07

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Solution

The fourth proportional to 13,518.97, 20,278.15 and 6,118.07 is: 9,176.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.97 : 20,278.15 = 6,118.07 : x
  2. Step 2: Convert to fraction form
    13,518.97/20,278.15 = 6,118.07/x
  3. Step 3: Cross multiply
    13,518.97x = 20,278.15 × 6,118.07
  4. Step 4: Simplify right side
    13,518.97x = 124,063,024.48
  5. Step 5: Solve for x
    x = 124,063,024.48/13,518.97
  6. Step 6: Final answer
    x = 9,176.96

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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.