Home / 14,514.55-21,781.53-5,280.55

Finding the Fourth Proportional to 14,514.55, 21,781.53 and 5,280.55

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Solution

The fourth proportional to 14,514.55, 21,781.53 and 5,280.55 is: 7,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,514.55 : 21,781.53 = 5,280.55 : x
  2. Step 2: Convert to fraction form
    14,514.55/21,781.53 = 5,280.55/x
  3. Step 3: Cross multiply
    14,514.55x = 21,781.53 × 5,280.55
  4. Step 4: Simplify right side
    14,514.55x = 115,018,458.24
  5. Step 5: Solve for x
    x = 115,018,458.24/14,514.55
  6. Step 6: Final answer
    x = 7,924.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.