Home / 10,239.86-15,356.52-3,998.36

Finding the Fourth Proportional to 10,239.86, 15,356.52 and 3,998.36

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Solution

The fourth proportional to 10,239.86, 15,356.52 and 3,998.36 is: 5,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.86 : 15,356.52 = 3,998.36 : x
  2. Step 2: Convert to fraction form
    10,239.86/15,356.52 = 3,998.36/x
  3. Step 3: Cross multiply
    10,239.86x = 15,356.52 × 3,998.36
  4. Step 4: Simplify right side
    10,239.86x = 61,400,895.31
  5. Step 5: Solve for x
    x = 61,400,895.31/10,239.86
  6. Step 6: Final answer
    x = 5,996.26

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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.