Home / 16,872.48-23,284.68-9,319.20

Finding the Fourth Proportional to 16,872.48, 23,284.68 and 9,319.20

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Solution

The fourth proportional to 16,872.48, 23,284.68 and 9,319.20 is: 12,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.48 : 23,284.68 = 9,319.20 : x
  2. Step 2: Convert to fraction form
    16,872.48/23,284.68 = 9,319.20/x
  3. Step 3: Cross multiply
    16,872.48x = 23,284.68 × 9,319.20
  4. Step 4: Simplify right side
    16,872.48x = 216,994,589.86
  5. Step 5: Solve for x
    x = 216,994,589.86/16,872.48
  6. Step 6: Final answer
    x = 12,860.86

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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.