Home / 9,140.25-12,613.56-5,414.25

Finding the Fourth Proportional to 9,140.25, 12,613.56 and 5,414.25

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Solution

The fourth proportional to 9,140.25, 12,613.56 and 5,414.25 is: 7,471.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.25 : 12,613.56 = 5,414.25 : x
  2. Step 2: Convert to fraction form
    9,140.25/12,613.56 = 5,414.25/x
  3. Step 3: Cross multiply
    9,140.25x = 12,613.56 × 5,414.25
  4. Step 4: Simplify right side
    9,140.25x = 68,292,967.23
  5. Step 5: Solve for x
    x = 68,292,967.23/9,140.25
  6. Step 6: Final answer
    x = 7,471.67

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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.