Home / 12,299.51-18,454.66-6,454.75

Finding the Fourth Proportional to 12,299.51, 18,454.66 and 6,454.75

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Solution

The fourth proportional to 12,299.51, 18,454.66 and 6,454.75 is: 9,684.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.51 : 18,454.66 = 6,454.75 : x
  2. Step 2: Convert to fraction form
    12,299.51/18,454.66 = 6,454.75/x
  3. Step 3: Cross multiply
    12,299.51x = 18,454.66 × 6,454.75
  4. Step 4: Simplify right side
    12,299.51x = 119,120,154.36
  5. Step 5: Solve for x
    x = 119,120,154.36/12,299.51
  6. Step 6: Final answer
    x = 9,684.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.