Home / 10,872.16-15,004.92-6,156.36

Finding the Fourth Proportional to 10,872.16, 15,004.92 and 6,156.36

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Solution

The fourth proportional to 10,872.16, 15,004.92 and 6,156.36 is: 8,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.16 : 15,004.92 = 6,156.36 : x
  2. Step 2: Convert to fraction form
    10,872.16/15,004.92 = 6,156.36/x
  3. Step 3: Cross multiply
    10,872.16x = 15,004.92 × 6,156.36
  4. Step 4: Simplify right side
    10,872.16x = 92,375,689.29
  5. Step 5: Solve for x
    x = 92,375,689.29/10,872.16
  6. Step 6: Final answer
    x = 8,496.54

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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.