Home / 15,938.31-21,996.60-9,223.83

Finding the Fourth Proportional to 15,938.31, 21,996.60 and 9,223.83

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Solution

The fourth proportional to 15,938.31, 21,996.60 and 9,223.83 is: 12,729.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,938.31 : 21,996.60 = 9,223.83 : x
  2. Step 2: Convert to fraction form
    15,938.31/21,996.60 = 9,223.83/x
  3. Step 3: Cross multiply
    15,938.31x = 21,996.60 × 9,223.83
  4. Step 4: Simplify right side
    15,938.31x = 202,892,898.98
  5. Step 5: Solve for x
    x = 202,892,898.98/15,938.31
  6. Step 6: Final answer
    x = 12,729.89

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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.