Home / 16,879.20-23,292.70-9,325.40

Finding the Fourth Proportional to 16,879.20, 23,292.70 and 9,325.40

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Solution

The fourth proportional to 16,879.20, 23,292.70 and 9,325.40 is: 12,868.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.20 : 23,292.70 = 9,325.40 : x
  2. Step 2: Convert to fraction form
    16,879.20/23,292.70 = 9,325.40/x
  3. Step 3: Cross multiply
    16,879.20x = 23,292.70 × 9,325.40
  4. Step 4: Simplify right side
    16,879.20x = 217,213,744.58
  5. Step 5: Solve for x
    x = 217,213,744.58/16,879.20
  6. Step 6: Final answer
    x = 12,868.72

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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.