Home / 12,062.96-18,079.86-5,122.88

Finding the Fourth Proportional to 12,062.96, 18,079.86 and 5,122.88

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Solution

The fourth proportional to 12,062.96, 18,079.86 and 5,122.88 is: 7,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,062.96 : 18,079.86 = 5,122.88 : x
  2. Step 2: Convert to fraction form
    12,062.96/18,079.86 = 5,122.88/x
  3. Step 3: Cross multiply
    12,062.96x = 18,079.86 × 5,122.88
  4. Step 4: Simplify right side
    12,062.96x = 92,620,953.20
  5. Step 5: Solve for x
    x = 92,620,953.20/12,062.96
  6. Step 6: Final answer
    x = 7,678.13

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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.