Home / 11,318.20-15,619.04-6,283.15

Finding the Fourth Proportional to 11,318.20, 15,619.04 and 6,283.15

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Solution

The fourth proportional to 11,318.20, 15,619.04 and 6,283.15 is: 8,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.20 : 15,619.04 = 6,283.15 : x
  2. Step 2: Convert to fraction form
    11,318.20/15,619.04 = 6,283.15/x
  3. Step 3: Cross multiply
    11,318.20x = 15,619.04 × 6,283.15
  4. Step 4: Simplify right side
    11,318.20x = 98,136,693.08
  5. Step 5: Solve for x
    x = 98,136,693.08/11,318.20
  6. Step 6: Final answer
    x = 8,670.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.