Home / 10,474.12-15,683.04-9,145.36

Finding the Fourth Proportional to 10,474.12, 15,683.04 and 9,145.36

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Solution

The fourth proportional to 10,474.12, 15,683.04 and 9,145.36 is: 13,693.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,474.12 : 15,683.04 = 9,145.36 : x
  2. Step 2: Convert to fraction form
    10,474.12/15,683.04 = 9,145.36/x
  3. Step 3: Cross multiply
    10,474.12x = 15,683.04 × 9,145.36
  4. Step 4: Simplify right side
    10,474.12x = 143,427,046.69
  5. Step 5: Solve for x
    x = 143,427,046.69/10,474.12
  6. Step 6: Final answer
    x = 13,693.47

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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.