Home / 8,320.60-11,479.48-5,338.04

Finding the Fourth Proportional to 8,320.60, 11,479.48 and 5,338.04

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Solution

The fourth proportional to 8,320.60, 11,479.48 and 5,338.04 is: 7,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.60 : 11,479.48 = 5,338.04 : x
  2. Step 2: Convert to fraction form
    8,320.60/11,479.48 = 5,338.04/x
  3. Step 3: Cross multiply
    8,320.60x = 11,479.48 × 5,338.04
  4. Step 4: Simplify right side
    8,320.60x = 61,277,932.26
  5. Step 5: Solve for x
    x = 61,277,932.26/8,320.60
  6. Step 6: Final answer
    x = 7,364.61

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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.