Home / 8,729.18-13,088.78-5,959.20

Finding the Fourth Proportional to 8,729.18, 13,088.78 and 5,959.20

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Solution

The fourth proportional to 8,729.18, 13,088.78 and 5,959.20 is: 8,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.18 : 13,088.78 = 5,959.20 : x
  2. Step 2: Convert to fraction form
    8,729.18/13,088.78 = 5,959.20/x
  3. Step 3: Cross multiply
    8,729.18x = 13,088.78 × 5,959.20
  4. Step 4: Simplify right side
    8,729.18x = 77,998,657.78
  5. Step 5: Solve for x
    x = 77,998,657.78/8,729.18
  6. Step 6: Final answer
    x = 8,935.39

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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.