Home / 9,140.60-12,614-5,162.54

Finding the Fourth Proportional to 9,140.60, 12,614 and 5,162.54

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Solution

The fourth proportional to 9,140.60, 12,614 and 5,162.54 is: 7,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.60 : 12,614 = 5,162.54 : x
  2. Step 2: Convert to fraction form
    9,140.60/12,614 = 5,162.54/x
  3. Step 3: Cross multiply
    9,140.60x = 12,614 × 5,162.54
  4. Step 4: Simplify right side
    9,140.60x = 65,120,279.56
  5. Step 5: Solve for x
    x = 65,120,279.56/9,140.60
  6. Step 6: Final answer
    x = 7,124.29

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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.