Home / 8,045.52-12,112.80-6,299.88

Finding the Fourth Proportional to 8,045.52, 12,112.80 and 6,299.88

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Solution

The fourth proportional to 8,045.52, 12,112.80 and 6,299.88 is: 9,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045.52 : 12,112.80 = 6,299.88 : x
  2. Step 2: Convert to fraction form
    8,045.52/12,112.80 = 6,299.88/x
  3. Step 3: Cross multiply
    8,045.52x = 12,112.80 × 6,299.88
  4. Step 4: Simplify right side
    8,045.52x = 76,309,186.46
  5. Step 5: Solve for x
    x = 76,309,186.46/8,045.52
  6. Step 6: Final answer
    x = 9,484.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.