Home / 8,456.08-12,686.84-4,074

Finding the Fourth Proportional to 8,456.08, 12,686.84 and 4,074

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Solution

The fourth proportional to 8,456.08, 12,686.84 and 4,074 is: 6,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.08 : 12,686.84 = 4,074 : x
  2. Step 2: Convert to fraction form
    8,456.08/12,686.84 = 4,074/x
  3. Step 3: Cross multiply
    8,456.08x = 12,686.84 × 4,074
  4. Step 4: Simplify right side
    8,456.08x = 51,686,186.16
  5. Step 5: Solve for x
    x = 51,686,186.16/8,456.08
  6. Step 6: Final answer
    x = 6,112.31

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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.