Home / 14,514.68-20,021.73-9,128.55

Finding the Fourth Proportional to 14,514.68, 20,021.73 and 9,128.55

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Solution

The fourth proportional to 14,514.68, 20,021.73 and 9,128.55 is: 12,592.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,514.68 : 20,021.73 = 9,128.55 : x
  2. Step 2: Convert to fraction form
    14,514.68/20,021.73 = 9,128.55/x
  3. Step 3: Cross multiply
    14,514.68x = 20,021.73 × 9,128.55
  4. Step 4: Simplify right side
    14,514.68x = 182,769,363.39
  5. Step 5: Solve for x
    x = 182,769,363.39/14,514.68
  6. Step 6: Final answer
    x = 12,592.04

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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.