Home / 11,265.60-16,876.80-6,643.20

Finding the Fourth Proportional to 11,265.60, 16,876.80 and 6,643.20

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Solution

The fourth proportional to 11,265.60, 16,876.80 and 6,643.20 is: 9,952.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.60 : 16,876.80 = 6,643.20 : x
  2. Step 2: Convert to fraction form
    11,265.60/16,876.80 = 6,643.20/x
  3. Step 3: Cross multiply
    11,265.60x = 16,876.80 × 6,643.20
  4. Step 4: Simplify right side
    11,265.60x = 112,115,957.76
  5. Step 5: Solve for x
    x = 112,115,957.76/11,265.60
  6. Step 6: Final answer
    x = 9,952.06

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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.