Home / 8,340.88-11,485.92-7,456.36

Finding the Fourth Proportional to 8,340.88, 11,485.92 and 7,456.36

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Solution

The fourth proportional to 8,340.88, 11,485.92 and 7,456.36 is: 10,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.88 : 11,485.92 = 7,456.36 : x
  2. Step 2: Convert to fraction form
    8,340.88/11,485.92 = 7,456.36/x
  3. Step 3: Cross multiply
    8,340.88x = 11,485.92 × 7,456.36
  4. Step 4: Simplify right side
    8,340.88x = 85,643,154.45
  5. Step 5: Solve for x
    x = 85,643,154.45/8,340.88
  6. Step 6: Final answer
    x = 10,267.88

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Half scale
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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.