Home / 8,867.49-12,243.30-5,511.81

Finding the Fourth Proportional to 8,867.49, 12,243.30 and 5,511.81

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Solution

The fourth proportional to 8,867.49, 12,243.30 and 5,511.81 is: 7,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,867.49 : 12,243.30 = 5,511.81 : x
  2. Step 2: Convert to fraction form
    8,867.49/12,243.30 = 5,511.81/x
  3. Step 3: Cross multiply
    8,867.49x = 12,243.30 × 5,511.81
  4. Step 4: Simplify right side
    8,867.49x = 67,482,743.37
  5. Step 5: Solve for x
    x = 67,482,743.37/8,867.49
  6. Step 6: Final answer
    x = 7,610.13

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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.