Home / 8,719.28-13,080.54-2,876.30

Finding the Fourth Proportional to 8,719.28, 13,080.54 and 2,876.30

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Solution

The fourth proportional to 8,719.28, 13,080.54 and 2,876.30 is: 4,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.28 : 13,080.54 = 2,876.30 : x
  2. Step 2: Convert to fraction form
    8,719.28/13,080.54 = 2,876.30/x
  3. Step 3: Cross multiply
    8,719.28x = 13,080.54 × 2,876.30
  4. Step 4: Simplify right side
    8,719.28x = 37,623,557.20
  5. Step 5: Solve for x
    x = 37,623,557.20/8,719.28
  6. Step 6: Final answer
    x = 4,314.98

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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.