Home / 14,508.72-20,013.48-8,910

Finding the Fourth Proportional to 14,508.72, 20,013.48 and 8,910

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Solution

The fourth proportional to 14,508.72, 20,013.48 and 8,910 is: 12,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508.72 : 20,013.48 = 8,910 : x
  2. Step 2: Convert to fraction form
    14,508.72/20,013.48 = 8,910/x
  3. Step 3: Cross multiply
    14,508.72x = 20,013.48 × 8,910
  4. Step 4: Simplify right side
    14,508.72x = 178,320,106.80
  5. Step 5: Solve for x
    x = 178,320,106.80/14,508.72
  6. Step 6: Final answer
    x = 12,290.55

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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.