Home / 10,222.44-15,364.24-8,478.92

Finding the Fourth Proportional to 10,222.44, 15,364.24 and 8,478.92

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Solution

The fourth proportional to 10,222.44, 15,364.24 and 8,478.92 is: 12,743.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.44 : 15,364.24 = 8,478.92 : x
  2. Step 2: Convert to fraction form
    10,222.44/15,364.24 = 8,478.92/x
  3. Step 3: Cross multiply
    10,222.44x = 15,364.24 × 8,478.92
  4. Step 4: Simplify right side
    10,222.44x = 130,272,161.82
  5. Step 5: Solve for x
    x = 130,272,161.82/10,222.44
  6. Step 6: Final answer
    x = 12,743.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.