Home / 19,680.79-29,514.01-7,197.12

Finding the Fourth Proportional to 19,680.79, 29,514.01 and 7,197.12

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Solution

The fourth proportional to 19,680.79, 29,514.01 and 7,197.12 is: 10,793.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.79 : 29,514.01 = 7,197.12 : x
  2. Step 2: Convert to fraction form
    19,680.79/29,514.01 = 7,197.12/x
  3. Step 3: Cross multiply
    19,680.79x = 29,514.01 × 7,197.12
  4. Step 4: Simplify right side
    19,680.79x = 212,415,853.66
  5. Step 5: Solve for x
    x = 212,415,853.66/19,680.79
  6. Step 6: Final answer
    x = 10,793.06

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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.