Home / 15,190.68-20,963.07-8,475.92

Finding the Fourth Proportional to 15,190.68, 20,963.07 and 8,475.92

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Solution

The fourth proportional to 15,190.68, 20,963.07 and 8,475.92 is: 11,696.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.68 : 20,963.07 = 8,475.92 : x
  2. Step 2: Convert to fraction form
    15,190.68/20,963.07 = 8,475.92/x
  3. Step 3: Cross multiply
    15,190.68x = 20,963.07 × 8,475.92
  4. Step 4: Simplify right side
    15,190.68x = 177,681,199.46
  5. Step 5: Solve for x
    x = 177,681,199.46/15,190.68
  6. Step 6: Final answer
    x = 11,696.72

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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.