Home / 12,167.20-18,248.04-5,587.06

Finding the Fourth Proportional to 12,167.20, 18,248.04 and 5,587.06

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Solution

The fourth proportional to 12,167.20, 18,248.04 and 5,587.06 is: 8,379.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.20 : 18,248.04 = 5,587.06 : x
  2. Step 2: Convert to fraction form
    12,167.20/18,248.04 = 5,587.06/x
  3. Step 3: Cross multiply
    12,167.20x = 18,248.04 × 5,587.06
  4. Step 4: Simplify right side
    12,167.20x = 101,952,866.43
  5. Step 5: Solve for x
    x = 101,952,866.43/12,167.20
  6. Step 6: Final answer
    x = 8,379.32

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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.