Home / 8,645.80-11,932.32-5,287.96

Finding the Fourth Proportional to 8,645.80, 11,932.32 and 5,287.96

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Solution

The fourth proportional to 8,645.80, 11,932.32 and 5,287.96 is: 7,298.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.80 : 11,932.32 = 5,287.96 : x
  2. Step 2: Convert to fraction form
    8,645.80/11,932.32 = 5,287.96/x
  3. Step 3: Cross multiply
    8,645.80x = 11,932.32 × 5,287.96
  4. Step 4: Simplify right side
    8,645.80x = 63,097,630.87
  5. Step 5: Solve for x
    x = 63,097,630.87/8,645.80
  6. Step 6: Final answer
    x = 7,298.07

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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.