Home / 14,781.29-20,393.51-8,814.89

Finding the Fourth Proportional to 14,781.29, 20,393.51 and 8,814.89

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Solution

The fourth proportional to 14,781.29, 20,393.51 and 8,814.89 is: 12,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.29 : 20,393.51 = 8,814.89 : x
  2. Step 2: Convert to fraction form
    14,781.29/20,393.51 = 8,814.89/x
  3. Step 3: Cross multiply
    14,781.29x = 20,393.51 × 8,814.89
  4. Step 4: Simplify right side
    14,781.29x = 179,766,554.27
  5. Step 5: Solve for x
    x = 179,766,554.27/14,781.29
  6. Step 6: Final answer
    x = 12,161.77

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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.