Home / 8,980.16-13,470.24-3,136.82

Finding the Fourth Proportional to 8,980.16, 13,470.24 and 3,136.82

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Solution

The fourth proportional to 8,980.16, 13,470.24 and 3,136.82 is: 4,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.16 : 13,470.24 = 3,136.82 : x
  2. Step 2: Convert to fraction form
    8,980.16/13,470.24 = 3,136.82/x
  3. Step 3: Cross multiply
    8,980.16x = 13,470.24 × 3,136.82
  4. Step 4: Simplify right side
    8,980.16x = 42,253,718.24
  5. Step 5: Solve for x
    x = 42,253,718.24/8,980.16
  6. Step 6: Final answer
    x = 4,705.23

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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.