Home / 9,110.46-12,572.51-5,131.20

Finding the Fourth Proportional to 9,110.46, 12,572.51 and 5,131.20

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Solution

The fourth proportional to 9,110.46, 12,572.51 and 5,131.20 is: 7,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.46 : 12,572.51 = 5,131.20 : x
  2. Step 2: Convert to fraction form
    9,110.46/12,572.51 = 5,131.20/x
  3. Step 3: Cross multiply
    9,110.46x = 12,572.51 × 5,131.20
  4. Step 4: Simplify right side
    9,110.46x = 64,512,037.66
  5. Step 5: Solve for x
    x = 64,512,037.66/9,110.46
  6. Step 6: Final answer
    x = 7,081.10

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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.