Home / 9,142.31-13,705.36-4,459.70

Finding the Fourth Proportional to 9,142.31, 13,705.36 and 4,459.70

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Solution

The fourth proportional to 9,142.31, 13,705.36 and 4,459.70 is: 6,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.31 : 13,705.36 = 4,459.70 : x
  2. Step 2: Convert to fraction form
    9,142.31/13,705.36 = 4,459.70/x
  3. Step 3: Cross multiply
    9,142.31x = 13,705.36 × 4,459.70
  4. Step 4: Simplify right side
    9,142.31x = 61,121,793.99
  5. Step 5: Solve for x
    x = 61,121,793.99/9,142.31
  6. Step 6: Final answer
    x = 6,685.60

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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.