Home / 15,721.70-23,546.10-9,816.80

Finding the Fourth Proportional to 15,721.70, 23,546.10 and 9,816.80

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Solution

The fourth proportional to 15,721.70, 23,546.10 and 9,816.80 is: 14,702.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,721.70 : 23,546.10 = 9,816.80 : x
  2. Step 2: Convert to fraction form
    15,721.70/23,546.10 = 9,816.80/x
  3. Step 3: Cross multiply
    15,721.70x = 23,546.10 × 9,816.80
  4. Step 4: Simplify right side
    15,721.70x = 231,147,354.48
  5. Step 5: Solve for x
    x = 231,147,354.48/15,721.70
  6. Step 6: Final answer
    x = 14,702.44

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1.5x scale

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.