Home / 18,211.92-25,132.47-10,254.21

Finding the Fourth Proportional to 18,211.92, 25,132.47 and 10,254.21

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Solution

The fourth proportional to 18,211.92, 25,132.47 and 10,254.21 is: 14,150.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.92 : 25,132.47 = 10,254.21 : x
  2. Step 2: Convert to fraction form
    18,211.92/25,132.47 = 10,254.21/x
  3. Step 3: Cross multiply
    18,211.92x = 25,132.47 × 10,254.21
  4. Step 4: Simplify right side
    18,211.92x = 257,713,625.20
  5. Step 5: Solve for x
    x = 257,713,625.20/18,211.92
  6. Step 6: Final answer
    x = 14,150.82

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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.