Home / 12,432.47-17,144.66-7,954.59

Finding the Fourth Proportional to 12,432.47, 17,144.66 and 7,954.59

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Solution

The fourth proportional to 12,432.47, 17,144.66 and 7,954.59 is: 10,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.47 : 17,144.66 = 7,954.59 : x
  2. Step 2: Convert to fraction form
    12,432.47/17,144.66 = 7,954.59/x
  3. Step 3: Cross multiply
    12,432.47x = 17,144.66 × 7,954.59
  4. Step 4: Simplify right side
    12,432.47x = 136,378,701.22
  5. Step 5: Solve for x
    x = 136,378,701.22/12,432.47
  6. Step 6: Final answer
    x = 10,969.56

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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.