Home / 9,110.42-12,572.39-5,131.60

Finding the Fourth Proportional to 9,110.42, 12,572.39 and 5,131.60

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Solution

The fourth proportional to 9,110.42, 12,572.39 and 5,131.60 is: 7,081.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.42 : 12,572.39 = 5,131.60 : x
  2. Step 2: Convert to fraction form
    9,110.42/12,572.39 = 5,131.60/x
  3. Step 3: Cross multiply
    9,110.42x = 12,572.39 × 5,131.60
  4. Step 4: Simplify right side
    9,110.42x = 64,516,419.44
  5. Step 5: Solve for x
    x = 64,516,419.44/9,110.42
  6. Step 6: Final answer
    x = 7,081.61

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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.