Home / 15,898.31-21,939.75-9,933.44

Finding the Fourth Proportional to 15,898.31, 21,939.75 and 9,933.44

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Solution

The fourth proportional to 15,898.31, 21,939.75 and 9,933.44 is: 13,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.31 : 21,939.75 = 9,933.44 : x
  2. Step 2: Convert to fraction form
    15,898.31/21,939.75 = 9,933.44/x
  3. Step 3: Cross multiply
    15,898.31x = 21,939.75 × 9,933.44
  4. Step 4: Simplify right side
    15,898.31x = 217,937,066.57
  5. Step 5: Solve for x
    x = 217,937,066.57/15,898.31
  6. Step 6: Final answer
    x = 13,708.19

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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.