Home / 16,246.90-22,420.83-9,872.20

Finding the Fourth Proportional to 16,246.90, 22,420.83 and 9,872.20

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Solution

The fourth proportional to 16,246.90, 22,420.83 and 9,872.20 is: 13,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,246.90 : 22,420.83 = 9,872.20 : x
  2. Step 2: Convert to fraction form
    16,246.90/22,420.83 = 9,872.20/x
  3. Step 3: Cross multiply
    16,246.90x = 22,420.83 × 9,872.20
  4. Step 4: Simplify right side
    16,246.90x = 221,342,917.93
  5. Step 5: Solve for x
    x = 221,342,917.93/16,246.90
  6. Step 6: Final answer
    x = 13,623.70

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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.