Home / 12,531.51-17,304.13-8,957.59

Finding the Fourth Proportional to 12,531.51, 17,304.13 and 8,957.59

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Solution

The fourth proportional to 12,531.51, 17,304.13 and 8,957.59 is: 12,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.51 : 17,304.13 = 8,957.59 : x
  2. Step 2: Convert to fraction form
    12,531.51/17,304.13 = 8,957.59/x
  3. Step 3: Cross multiply
    12,531.51x = 17,304.13 × 8,957.59
  4. Step 4: Simplify right side
    12,531.51x = 155,003,269.78
  5. Step 5: Solve for x
    x = 155,003,269.78/12,531.51
  6. Step 6: Final answer
    x = 12,369.08

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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.