Home / 9,992.24-14,959.20-7,218.80

Finding the Fourth Proportional to 9,992.24, 14,959.20 and 7,218.80

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Solution

The fourth proportional to 9,992.24, 14,959.20 and 7,218.80 is: 10,807.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,992.24 : 14,959.20 = 7,218.80 : x
  2. Step 2: Convert to fraction form
    9,992.24/14,959.20 = 7,218.80/x
  3. Step 3: Cross multiply
    9,992.24x = 14,959.20 × 7,218.80
  4. Step 4: Simplify right side
    9,992.24x = 107,987,472.96
  5. Step 5: Solve for x
    x = 107,987,472.96/9,992.24
  6. Step 6: Final answer
    x = 10,807.13

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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.