Home / 12,531.42-17,301.33-7,822.62

Finding the Fourth Proportional to 12,531.42, 17,301.33 and 7,822.62

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Solution

The fourth proportional to 12,531.42, 17,301.33 and 7,822.62 is: 10,800.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.42 : 17,301.33 = 7,822.62 : x
  2. Step 2: Convert to fraction form
    12,531.42/17,301.33 = 7,822.62/x
  3. Step 3: Cross multiply
    12,531.42x = 17,301.33 × 7,822.62
  4. Step 4: Simplify right side
    12,531.42x = 135,341,730.08
  5. Step 5: Solve for x
    x = 135,341,730.08/12,531.42
  6. Step 6: Final answer
    x = 10,800.19

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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.