Home / 10,975.72-15,144.16-6,500.88

Finding the Fourth Proportional to 10,975.72, 15,144.16 and 6,500.88

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Solution

The fourth proportional to 10,975.72, 15,144.16 and 6,500.88 is: 8,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.72 : 15,144.16 = 6,500.88 : x
  2. Step 2: Convert to fraction form
    10,975.72/15,144.16 = 6,500.88/x
  3. Step 3: Cross multiply
    10,975.72x = 15,144.16 × 6,500.88
  4. Step 4: Simplify right side
    10,975.72x = 98,450,366.86
  5. Step 5: Solve for x
    x = 98,450,366.86/10,975.72
  6. Step 6: Final answer
    x = 8,969.83

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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.