Home / 15,514.31-21,410.19-9,549.47

Finding the Fourth Proportional to 15,514.31, 21,410.19 and 9,549.47

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Solution

The fourth proportional to 15,514.31, 21,410.19 and 9,549.47 is: 13,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514.31 : 21,410.19 = 9,549.47 : x
  2. Step 2: Convert to fraction form
    15,514.31/21,410.19 = 9,549.47/x
  3. Step 3: Cross multiply
    15,514.31x = 21,410.19 × 9,549.47
  4. Step 4: Simplify right side
    15,514.31x = 204,455,967.10
  5. Step 5: Solve for x
    x = 204,455,967.10/15,514.31
  6. Step 6: Final answer
    x = 13,178.54

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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.