Home / 10,382.16-15,577.20-3,812.88

Finding the Fourth Proportional to 10,382.16, 15,577.20 and 3,812.88

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Solution

The fourth proportional to 10,382.16, 15,577.20 and 3,812.88 is: 5,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.16 : 15,577.20 = 3,812.88 : x
  2. Step 2: Convert to fraction form
    10,382.16/15,577.20 = 3,812.88/x
  3. Step 3: Cross multiply
    10,382.16x = 15,577.20 × 3,812.88
  4. Step 4: Simplify right side
    10,382.16x = 59,393,994.34
  5. Step 5: Solve for x
    x = 59,393,994.34/10,382.16
  6. Step 6: Final answer
    x = 5,720.77

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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.