Home / 9,110.91-12,573-5,131.92

Finding the Fourth Proportional to 9,110.91, 12,573 and 5,131.92

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Solution

The fourth proportional to 9,110.91, 12,573 and 5,131.92 is: 7,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.91 : 12,573 = 5,131.92 : x
  2. Step 2: Convert to fraction form
    9,110.91/12,573 = 5,131.92/x
  3. Step 3: Cross multiply
    9,110.91x = 12,573 × 5,131.92
  4. Step 4: Simplify right side
    9,110.91x = 64,523,630.16
  5. Step 5: Solve for x
    x = 64,523,630.16/9,110.91
  6. Step 6: Final answer
    x = 7,082.02

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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.