Home / 8,278.68-11,424.54-4,877.69

Finding the Fourth Proportional to 8,278.68, 11,424.54 and 4,877.69

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Solution

The fourth proportional to 8,278.68, 11,424.54 and 4,877.69 is: 6,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.68 : 11,424.54 = 4,877.69 : x
  2. Step 2: Convert to fraction form
    8,278.68/11,424.54 = 4,877.69/x
  3. Step 3: Cross multiply
    8,278.68x = 11,424.54 × 4,877.69
  4. Step 4: Simplify right side
    8,278.68x = 55,725,325.68
  5. Step 5: Solve for x
    x = 55,725,325.68/8,278.68
  6. Step 6: Final answer
    x = 6,731.18

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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.