Home / 12,102.12-18,149.58-4,707.72

Finding the Fourth Proportional to 12,102.12, 18,149.58 and 4,707.72

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Solution

The fourth proportional to 12,102.12, 18,149.58 and 4,707.72 is: 7,060.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.12 : 18,149.58 = 4,707.72 : x
  2. Step 2: Convert to fraction form
    12,102.12/18,149.58 = 4,707.72/x
  3. Step 3: Cross multiply
    12,102.12x = 18,149.58 × 4,707.72
  4. Step 4: Simplify right side
    12,102.12x = 85,443,140.76
  5. Step 5: Solve for x
    x = 85,443,140.76/12,102.12
  6. Step 6: Final answer
    x = 7,060.18

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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.