Home / 15,514.56-21,403.67-10,135.15

Finding the Fourth Proportional to 15,514.56, 21,403.67 and 10,135.15

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Solution

The fourth proportional to 15,514.56, 21,403.67 and 10,135.15 is: 13,982.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.56 : 21,403.67 = 10,135.15 : x
  2. Step 2: Convert to fraction form
    15,514.56/21,403.67 = 10,135.15/x
  3. Step 3: Cross multiply
    15,514.56x = 21,403.67 × 10,135.15
  4. Step 4: Simplify right side
    15,514.56x = 216,929,390.52
  5. Step 5: Solve for x
    x = 216,929,390.52/15,514.56
  6. Step 6: Final answer
    x = 13,982.31

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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.