Home / 8,001.86-12,003.06-2,158.52

Finding the Fourth Proportional to 8,001.86, 12,003.06 and 2,158.52

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Solution

The fourth proportional to 8,001.86, 12,003.06 and 2,158.52 is: 3,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.86 : 12,003.06 = 2,158.52 : x
  2. Step 2: Convert to fraction form
    8,001.86/12,003.06 = 2,158.52/x
  3. Step 3: Cross multiply
    8,001.86x = 12,003.06 × 2,158.52
  4. Step 4: Simplify right side
    8,001.86x = 25,908,845.07
  5. Step 5: Solve for x
    x = 25,908,845.07/8,001.86
  6. Step 6: Final answer
    x = 3,237.85

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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.