Home / 10,671.28-15,985.46-5,318.30

Finding the Fourth Proportional to 10,671.28, 15,985.46 and 5,318.30

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Solution

The fourth proportional to 10,671.28, 15,985.46 and 5,318.30 is: 7,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,671.28 : 15,985.46 = 5,318.30 : x
  2. Step 2: Convert to fraction form
    10,671.28/15,985.46 = 5,318.30/x
  3. Step 3: Cross multiply
    10,671.28x = 15,985.46 × 5,318.30
  4. Step 4: Simplify right side
    10,671.28x = 85,015,525.18
  5. Step 5: Solve for x
    x = 85,015,525.18/10,671.28
  6. Step 6: Final answer
    x = 7,966.76

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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.