Home / 9,211.40-12,712.05-5,232.38

Finding the Fourth Proportional to 9,211.40, 12,712.05 and 5,232.38

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Solution

The fourth proportional to 9,211.40, 12,712.05 and 5,232.38 is: 7,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.40 : 12,712.05 = 5,232.38 : x
  2. Step 2: Convert to fraction form
    9,211.40/12,712.05 = 5,232.38/x
  3. Step 3: Cross multiply
    9,211.40x = 12,712.05 × 5,232.38
  4. Step 4: Simplify right side
    9,211.40x = 66,514,276.18
  5. Step 5: Solve for x
    x = 66,514,276.18/9,211.40
  6. Step 6: Final answer
    x = 7,220.87

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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.