Home / 10,953.92-16,407.84-5,115.20

Finding the Fourth Proportional to 10,953.92, 16,407.84 and 5,115.20

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Solution

The fourth proportional to 10,953.92, 16,407.84 and 5,115.20 is: 7,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.92 : 16,407.84 = 5,115.20 : x
  2. Step 2: Convert to fraction form
    10,953.92/16,407.84 = 5,115.20/x
  3. Step 3: Cross multiply
    10,953.92x = 16,407.84 × 5,115.20
  4. Step 4: Simplify right side
    10,953.92x = 83,929,383.17
  5. Step 5: Solve for x
    x = 83,929,383.17/10,953.92
  6. Step 6: Final answer
    x = 7,662.04

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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.