Home / 10,239.57-15,359.67-3,999.33

Finding the Fourth Proportional to 10,239.57, 15,359.67 and 3,999.33

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Solution

The fourth proportional to 10,239.57, 15,359.67 and 3,999.33 is: 5,999.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.57 : 15,359.67 = 3,999.33 : x
  2. Step 2: Convert to fraction form
    10,239.57/15,359.67 = 3,999.33/x
  3. Step 3: Cross multiply
    10,239.57x = 15,359.67 × 3,999.33
  4. Step 4: Simplify right side
    10,239.57x = 61,428,389.02
  5. Step 5: Solve for x
    x = 61,428,389.02/10,239.57
  6. Step 6: Final answer
    x = 5,999.12

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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.