Home / 14,641.11-20,207.10-8,979

Finding the Fourth Proportional to 14,641.11, 20,207.10 and 8,979

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Solution

The fourth proportional to 14,641.11, 20,207.10 and 8,979 is: 12,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,641.11 : 20,207.10 = 8,979 : x
  2. Step 2: Convert to fraction form
    14,641.11/20,207.10 = 8,979/x
  3. Step 3: Cross multiply
    14,641.11x = 20,207.10 × 8,979
  4. Step 4: Simplify right side
    14,641.11x = 181,439,550.90
  5. Step 5: Solve for x
    x = 181,439,550.90/14,641.11
  6. Step 6: Final answer
    x = 12,392.47

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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.