Home / 10,872.56-15,004.13-6,157.75

Finding the Fourth Proportional to 10,872.56, 15,004.13 and 6,157.75

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Solution

The fourth proportional to 10,872.56, 15,004.13 and 6,157.75 is: 8,497.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.56 : 15,004.13 = 6,157.75 : x
  2. Step 2: Convert to fraction form
    10,872.56/15,004.13 = 6,157.75/x
  3. Step 3: Cross multiply
    10,872.56x = 15,004.13 × 6,157.75
  4. Step 4: Simplify right side
    10,872.56x = 92,391,617.06
  5. Step 5: Solve for x
    x = 92,391,617.06/10,872.56
  6. Step 6: Final answer
    x = 8,497.69

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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.