Home / 15,228.58-21,016.48-8,514.08

Finding the Fourth Proportional to 15,228.58, 21,016.48 and 8,514.08

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Solution

The fourth proportional to 15,228.58, 21,016.48 and 8,514.08 is: 11,750.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.58 : 21,016.48 = 8,514.08 : x
  2. Step 2: Convert to fraction form
    15,228.58/21,016.48 = 8,514.08/x
  3. Step 3: Cross multiply
    15,228.58x = 21,016.48 × 8,514.08
  4. Step 4: Simplify right side
    15,228.58x = 178,935,992.04
  5. Step 5: Solve for x
    x = 178,935,992.04/15,228.58
  6. Step 6: Final answer
    x = 11,750.01

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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.