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Finding the Fourth Proportional to 13,032.90, 17,987.27 and 7,369.38

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Solution

The fourth proportional to 13,032.90, 17,987.27 and 7,369.38 is: 10,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,032.90 : 17,987.27 = 7,369.38 : x
  2. Step 2: Convert to fraction form
    13,032.90/17,987.27 = 7,369.38/x
  3. Step 3: Cross multiply
    13,032.90x = 17,987.27 × 7,369.38
  4. Step 4: Simplify right side
    13,032.90x = 132,554,990.95
  5. Step 5: Solve for x
    x = 132,554,990.95/13,032.90
  6. Step 6: Final answer
    x = 10,170.80

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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.