Home / 8,468.45-12,703.52-2,921.06

Finding the Fourth Proportional to 8,468.45, 12,703.52 and 2,921.06

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Solution

The fourth proportional to 8,468.45, 12,703.52 and 2,921.06 is: 4,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.45 : 12,703.52 = 2,921.06 : x
  2. Step 2: Convert to fraction form
    8,468.45/12,703.52 = 2,921.06/x
  3. Step 3: Cross multiply
    8,468.45x = 12,703.52 × 2,921.06
  4. Step 4: Simplify right side
    8,468.45x = 37,107,744.13
  5. Step 5: Solve for x
    x = 37,107,744.13/8,468.45
  6. Step 6: Final answer
    x = 4,381.88

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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.