Home / 15,116.40-22,663.80-6,789.60

Finding the Fourth Proportional to 15,116.40, 22,663.80 and 6,789.60

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Solution

The fourth proportional to 15,116.40, 22,663.80 and 6,789.60 is: 10,179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.40 : 22,663.80 = 6,789.60 : x
  2. Step 2: Convert to fraction form
    15,116.40/22,663.80 = 6,789.60/x
  3. Step 3: Cross multiply
    15,116.40x = 22,663.80 × 6,789.60
  4. Step 4: Simplify right side
    15,116.40x = 153,878,136.48
  5. Step 5: Solve for x
    x = 153,878,136.48/15,116.40
  6. Step 6: Final answer
    x = 10,179.55

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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.