Home / 16,872.60-25,331.70-9,859.80

Finding the Fourth Proportional to 16,872.60, 25,331.70 and 9,859.80

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Solution

The fourth proportional to 16,872.60, 25,331.70 and 9,859.80 is: 14,803.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.60 : 25,331.70 = 9,859.80 : x
  2. Step 2: Convert to fraction form
    16,872.60/25,331.70 = 9,859.80/x
  3. Step 3: Cross multiply
    16,872.60x = 25,331.70 × 9,859.80
  4. Step 4: Simplify right side
    16,872.60x = 249,765,495.66
  5. Step 5: Solve for x
    x = 249,765,495.66/16,872.60
  6. Step 6: Final answer
    x = 14,803.02

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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.