Home / 13,666.18-18,864.04-8,002.75

Finding the Fourth Proportional to 13,666.18, 18,864.04 and 8,002.75

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Solution

The fourth proportional to 13,666.18, 18,864.04 and 8,002.75 is: 11,046.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.18 : 18,864.04 = 8,002.75 : x
  2. Step 2: Convert to fraction form
    13,666.18/18,864.04 = 8,002.75/x
  3. Step 3: Cross multiply
    13,666.18x = 18,864.04 × 8,002.75
  4. Step 4: Simplify right side
    13,666.18x = 150,964,196.11
  5. Step 5: Solve for x
    x = 150,964,196.11/13,666.18
  6. Step 6: Final answer
    x = 11,046.55

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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.