Home / 15,121.32-22,580.07-12,353.46

Finding the Fourth Proportional to 15,121.32, 22,580.07 and 12,353.46

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Solution

The fourth proportional to 15,121.32, 22,580.07 and 12,353.46 is: 18,446.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121.32 : 22,580.07 = 12,353.46 : x
  2. Step 2: Convert to fraction form
    15,121.32/22,580.07 = 12,353.46/x
  3. Step 3: Cross multiply
    15,121.32x = 22,580.07 × 12,353.46
  4. Step 4: Simplify right side
    15,121.32x = 278,941,991.54
  5. Step 5: Solve for x
    x = 278,941,991.54/15,121.32
  6. Step 6: Final answer
    x = 18,446.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.