Home / 12,191.08-18,300.06-8,743.72

Finding the Fourth Proportional to 12,191.08, 18,300.06 and 8,743.72

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Solution

The fourth proportional to 12,191.08, 18,300.06 and 8,743.72 is: 13,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.08 : 18,300.06 = 8,743.72 : x
  2. Step 2: Convert to fraction form
    12,191.08/18,300.06 = 8,743.72/x
  3. Step 3: Cross multiply
    12,191.08x = 18,300.06 × 8,743.72
  4. Step 4: Simplify right side
    12,191.08x = 160,010,600.62
  5. Step 5: Solve for x
    x = 160,010,600.62/12,191.08
  6. Step 6: Final answer
    x = 13,125.22

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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.