Home / 8,271.28-11,414.37-4,545.28

Finding the Fourth Proportional to 8,271.28, 11,414.37 and 4,545.28

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Solution

The fourth proportional to 8,271.28, 11,414.37 and 4,545.28 is: 6,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.28 : 11,414.37 = 4,545.28 : x
  2. Step 2: Convert to fraction form
    8,271.28/11,414.37 = 4,545.28/x
  3. Step 3: Cross multiply
    8,271.28x = 11,414.37 × 4,545.28
  4. Step 4: Simplify right side
    8,271.28x = 51,881,513.42
  5. Step 5: Solve for x
    x = 51,881,513.42/8,271.28
  6. Step 6: Final answer
    x = 6,272.49

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Half scale
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Double scale
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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.