Home / 7,947.60-11,911.68-4,477.68

Finding the Fourth Proportional to 7,947.60, 11,911.68 and 4,477.68

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Solution

The fourth proportional to 7,947.60, 11,911.68 and 4,477.68 is: 6,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.60 : 11,911.68 = 4,477.68 : x
  2. Step 2: Convert to fraction form
    7,947.60/11,911.68 = 4,477.68/x
  3. Step 3: Cross multiply
    7,947.60x = 11,911.68 × 4,477.68
  4. Step 4: Simplify right side
    7,947.60x = 53,336,691.30
  5. Step 5: Solve for x
    x = 53,336,691.30/7,947.60
  6. Step 6: Final answer
    x = 6,711.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.