Home / 16,246.08-22,420-9,961.92

Finding the Fourth Proportional to 16,246.08, 22,420 and 9,961.92

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Solution

The fourth proportional to 16,246.08, 22,420 and 9,961.92 is: 13,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,246.08 : 22,420 = 9,961.92 : x
  2. Step 2: Convert to fraction form
    16,246.08/22,420 = 9,961.92/x
  3. Step 3: Cross multiply
    16,246.08x = 22,420 × 9,961.92
  4. Step 4: Simplify right side
    16,246.08x = 223,346,246.40
  5. Step 5: Solve for x
    x = 223,346,246.40/16,246.08
  6. Step 6: Final answer
    x = 13,747.70

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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.