Home / 8,278.60-11,428.50-6,504.52

Finding the Fourth Proportional to 8,278.60, 11,428.50 and 6,504.52

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Solution

The fourth proportional to 8,278.60, 11,428.50 and 6,504.52 is: 8,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.60 : 11,428.50 = 6,504.52 : x
  2. Step 2: Convert to fraction form
    8,278.60/11,428.50 = 6,504.52/x
  3. Step 3: Cross multiply
    8,278.60x = 11,428.50 × 6,504.52
  4. Step 4: Simplify right side
    8,278.60x = 74,336,906.82
  5. Step 5: Solve for x
    x = 74,336,906.82/8,278.60
  6. Step 6: Final answer
    x = 8,979.41

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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.