Home / 16,220.98-24,329.36-5,128.79

Finding the Fourth Proportional to 16,220.98, 24,329.36 and 5,128.79

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Solution

The fourth proportional to 16,220.98, 24,329.36 and 5,128.79 is: 7,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.98 : 24,329.36 = 5,128.79 : x
  2. Step 2: Convert to fraction form
    16,220.98/24,329.36 = 5,128.79/x
  3. Step 3: Cross multiply
    16,220.98x = 24,329.36 × 5,128.79
  4. Step 4: Simplify right side
    16,220.98x = 124,780,069.45
  5. Step 5: Solve for x
    x = 124,780,069.45/16,220.98
  6. Step 6: Final answer
    x = 7,692.51

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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.