Home / 14,521.80-21,782.70-4,132.20

Finding the Fourth Proportional to 14,521.80, 21,782.70 and 4,132.20

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Solution

The fourth proportional to 14,521.80, 21,782.70 and 4,132.20 is: 6,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.80 : 21,782.70 = 4,132.20 : x
  2. Step 2: Convert to fraction form
    14,521.80/21,782.70 = 4,132.20/x
  3. Step 3: Cross multiply
    14,521.80x = 21,782.70 × 4,132.20
  4. Step 4: Simplify right side
    14,521.80x = 90,010,472.94
  5. Step 5: Solve for x
    x = 90,010,472.94/14,521.80
  6. Step 6: Final answer
    x = 6,198.30

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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.