Home / 10,276.80-15,396.30-5,881.20

Finding the Fourth Proportional to 10,276.80, 15,396.30 and 5,881.20

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Solution

The fourth proportional to 10,276.80, 15,396.30 and 5,881.20 is: 8,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.80 : 15,396.30 = 5,881.20 : x
  2. Step 2: Convert to fraction form
    10,276.80/15,396.30 = 5,881.20/x
  3. Step 3: Cross multiply
    10,276.80x = 15,396.30 × 5,881.20
  4. Step 4: Simplify right side
    10,276.80x = 90,548,719.56
  5. Step 5: Solve for x
    x = 90,548,719.56/10,276.80
  6. Step 6: Final answer
    x = 8,810.98

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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.