Home / 16,974.23-23,423.35-9,420.57

Finding the Fourth Proportional to 16,974.23, 23,423.35 and 9,420.57

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Solution

The fourth proportional to 16,974.23, 23,423.35 and 9,420.57 is: 12,999.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,974.23 : 23,423.35 = 9,420.57 : x
  2. Step 2: Convert to fraction form
    16,974.23/23,423.35 = 9,420.57/x
  3. Step 3: Cross multiply
    16,974.23x = 23,423.35 × 9,420.57
  4. Step 4: Simplify right side
    16,974.23x = 220,661,223.30
  5. Step 5: Solve for x
    x = 220,661,223.30/16,974.23
  6. Step 6: Final answer
    x = 12,999.78

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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.