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Finding the Fourth Proportional to 16,230.80, 22,404.84 and 10,643.60

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Solution

The fourth proportional to 16,230.80, 22,404.84 and 10,643.60 is: 14,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,230.80 : 22,404.84 = 10,643.60 : x
  2. Step 2: Convert to fraction form
    16,230.80/22,404.84 = 10,643.60/x
  3. Step 3: Cross multiply
    16,230.80x = 22,404.84 × 10,643.60
  4. Step 4: Simplify right side
    16,230.80x = 238,468,155.02
  5. Step 5: Solve for x
    x = 238,468,155.02/16,230.80
  6. Step 6: Final answer
    x = 14,692.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.