Home / 9,171.55-12,659.75-5,394.52

Finding the Fourth Proportional to 9,171.55, 12,659.75 and 5,394.52

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Solution

The fourth proportional to 9,171.55, 12,659.75 and 5,394.52 is: 7,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,171.55 : 12,659.75 = 5,394.52 : x
  2. Step 2: Convert to fraction form
    9,171.55/12,659.75 = 5,394.52/x
  3. Step 3: Cross multiply
    9,171.55x = 12,659.75 × 5,394.52
  4. Step 4: Simplify right side
    9,171.55x = 68,293,274.57
  5. Step 5: Solve for x
    x = 68,293,274.57/9,171.55
  6. Step 6: Final answer
    x = 7,446.21

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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.