Home / 10,305.18-14,221.05-5,589.48

Finding the Fourth Proportional to 10,305.18, 14,221.05 and 5,589.48

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Solution

The fourth proportional to 10,305.18, 14,221.05 and 5,589.48 is: 7,713.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.18 : 14,221.05 = 5,589.48 : x
  2. Step 2: Convert to fraction form
    10,305.18/14,221.05 = 5,589.48/x
  3. Step 3: Cross multiply
    10,305.18x = 14,221.05 × 5,589.48
  4. Step 4: Simplify right side
    10,305.18x = 79,488,274.55
  5. Step 5: Solve for x
    x = 79,488,274.55/10,305.18
  6. Step 6: Final answer
    x = 7,713.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.