Home / 8,118.54-11,203.80-4,581.78

Finding the Fourth Proportional to 8,118.54, 11,203.80 and 4,581.78

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Solution

The fourth proportional to 8,118.54, 11,203.80 and 4,581.78 is: 6,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.54 : 11,203.80 = 4,581.78 : x
  2. Step 2: Convert to fraction form
    8,118.54/11,203.80 = 4,581.78/x
  3. Step 3: Cross multiply
    8,118.54x = 11,203.80 × 4,581.78
  4. Step 4: Simplify right side
    8,118.54x = 51,333,346.76
  5. Step 5: Solve for x
    x = 51,333,346.76/8,118.54
  6. Step 6: Final answer
    x = 6,322.98

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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.