Home / 13,103.40-18,061.46-11,397.54

Finding the Fourth Proportional to 13,103.40, 18,061.46 and 11,397.54

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Solution

The fourth proportional to 13,103.40, 18,061.46 and 11,397.54 is: 15,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.40 : 18,061.46 = 11,397.54 : x
  2. Step 2: Convert to fraction form
    13,103.40/18,061.46 = 11,397.54/x
  3. Step 3: Cross multiply
    13,103.40x = 18,061.46 × 11,397.54
  4. Step 4: Simplify right side
    13,103.40x = 205,856,212.81
  5. Step 5: Solve for x
    x = 205,856,212.81/13,103.40
  6. Step 6: Final answer
    x = 15,710.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.