Home / 14,472.20-21,708.30-7,077.80

Finding the Fourth Proportional to 14,472.20, 21,708.30 and 7,077.80

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Solution

The fourth proportional to 14,472.20, 21,708.30 and 7,077.80 is: 10,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,472.20 : 21,708.30 = 7,077.80 : x
  2. Step 2: Convert to fraction form
    14,472.20/21,708.30 = 7,077.80/x
  3. Step 3: Cross multiply
    14,472.20x = 21,708.30 × 7,077.80
  4. Step 4: Simplify right side
    14,472.20x = 153,647,005.74
  5. Step 5: Solve for x
    x = 153,647,005.74/14,472.20
  6. Step 6: Final answer
    x = 10,616.70

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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.