Home / 8,281.50-11,432.28-5,139.54

Finding the Fourth Proportional to 8,281.50, 11,432.28 and 5,139.54

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Solution

The fourth proportional to 8,281.50, 11,432.28 and 5,139.54 is: 7,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.50 : 11,432.28 = 5,139.54 : x
  2. Step 2: Convert to fraction form
    8,281.50/11,432.28 = 5,139.54/x
  3. Step 3: Cross multiply
    8,281.50x = 11,432.28 × 5,139.54
  4. Step 4: Simplify right side
    8,281.50x = 58,756,660.35
  5. Step 5: Solve for x
    x = 58,756,660.35/8,281.50
  6. Step 6: Final answer
    x = 7,094.93

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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.