Home / 9,140.44-12,613.71-5,161.32

Finding the Fourth Proportional to 9,140.44, 12,613.71 and 5,161.32

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Solution

The fourth proportional to 9,140.44, 12,613.71 and 5,161.32 is: 7,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.44 : 12,613.71 = 5,161.32 : x
  2. Step 2: Convert to fraction form
    9,140.44/12,613.71 = 5,161.32/x
  3. Step 3: Cross multiply
    9,140.44x = 12,613.71 × 5,161.32
  4. Step 4: Simplify right side
    9,140.44x = 65,103,393.70
  5. Step 5: Solve for x
    x = 65,103,393.70/9,140.44
  6. Step 6: Final answer
    x = 7,122.57

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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.