Home / 9,126.96-12,595.32-5,147.70

Finding the Fourth Proportional to 9,126.96, 12,595.32 and 5,147.70

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Solution

The fourth proportional to 9,126.96, 12,595.32 and 5,147.70 is: 7,103.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.96 : 12,595.32 = 5,147.70 : x
  2. Step 2: Convert to fraction form
    9,126.96/12,595.32 = 5,147.70/x
  3. Step 3: Cross multiply
    9,126.96x = 12,595.32 × 5,147.70
  4. Step 4: Simplify right side
    9,126.96x = 64,836,928.76
  5. Step 5: Solve for x
    x = 64,836,928.76/9,126.96
  6. Step 6: Final answer
    x = 7,103.89

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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.