Home / 8,980.38-13,476.72-3,136.98

Finding the Fourth Proportional to 8,980.38, 13,476.72 and 3,136.98

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Solution

The fourth proportional to 8,980.38, 13,476.72 and 3,136.98 is: 4,707.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.38 : 13,476.72 = 3,136.98 : x
  2. Step 2: Convert to fraction form
    8,980.38/13,476.72 = 3,136.98/x
  3. Step 3: Cross multiply
    8,980.38x = 13,476.72 × 3,136.98
  4. Step 4: Simplify right side
    8,980.38x = 42,276,201.11
  5. Step 5: Solve for x
    x = 42,276,201.11/8,980.38
  6. Step 6: Final answer
    x = 4,707.62

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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.