Home / 19,070.72-28,589.16-7,216.18

Finding the Fourth Proportional to 19,070.72, 28,589.16 and 7,216.18

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Solution

The fourth proportional to 19,070.72, 28,589.16 and 7,216.18 is: 10,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,070.72 : 28,589.16 = 7,216.18 : x
  2. Step 2: Convert to fraction form
    19,070.72/28,589.16 = 7,216.18/x
  3. Step 3: Cross multiply
    19,070.72x = 28,589.16 × 7,216.18
  4. Step 4: Simplify right side
    19,070.72x = 206,304,524.61
  5. Step 5: Solve for x
    x = 206,304,524.61/19,070.72
  6. Step 6: Final answer
    x = 10,817.87

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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.