Home / 13,567.06-18,721.62-7,517.11

Finding the Fourth Proportional to 13,567.06, 18,721.62 and 7,517.11

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Solution

The fourth proportional to 13,567.06, 18,721.62 and 7,517.11 is: 10,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.06 : 18,721.62 = 7,517.11 : x
  2. Step 2: Convert to fraction form
    13,567.06/18,721.62 = 7,517.11/x
  3. Step 3: Cross multiply
    13,567.06x = 18,721.62 × 7,517.11
  4. Step 4: Simplify right side
    13,567.06x = 140,732,476.92
  5. Step 5: Solve for x
    x = 140,732,476.92/13,567.06
  6. Step 6: Final answer
    x = 10,373.10

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1.5x scale

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.