Home / 8,480.18-12,724.72-6,159.36

Finding the Fourth Proportional to 8,480.18, 12,724.72 and 6,159.36

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Solution

The fourth proportional to 8,480.18, 12,724.72 and 6,159.36 is: 9,242.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.18 : 12,724.72 = 6,159.36 : x
  2. Step 2: Convert to fraction form
    8,480.18/12,724.72 = 6,159.36/x
  3. Step 3: Cross multiply
    8,480.18x = 12,724.72 × 6,159.36
  4. Step 4: Simplify right side
    8,480.18x = 78,376,131.38
  5. Step 5: Solve for x
    x = 78,376,131.38/8,480.18
  6. Step 6: Final answer
    x = 9,242.27

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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.