Home / 8,013.77-12,003.89-6,445.30

Finding the Fourth Proportional to 8,013.77, 12,003.89 and 6,445.30

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Solution

The fourth proportional to 8,013.77, 12,003.89 and 6,445.30 is: 9,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.77 : 12,003.89 = 6,445.30 : x
  2. Step 2: Convert to fraction form
    8,013.77/12,003.89 = 6,445.30/x
  3. Step 3: Cross multiply
    8,013.77x = 12,003.89 × 6,445.30
  4. Step 4: Simplify right side
    8,013.77x = 77,368,672.22
  5. Step 5: Solve for x
    x = 77,368,672.22/8,013.77
  6. Step 6: Final answer
    x = 9,654.47

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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.