Home / 10,439.98-15,661.62-3,418.36

Finding the Fourth Proportional to 10,439.98, 15,661.62 and 3,418.36

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Solution

The fourth proportional to 10,439.98, 15,661.62 and 3,418.36 is: 5,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.98 : 15,661.62 = 3,418.36 : x
  2. Step 2: Convert to fraction form
    10,439.98/15,661.62 = 3,418.36/x
  3. Step 3: Cross multiply
    10,439.98x = 15,661.62 × 3,418.36
  4. Step 4: Simplify right side
    10,439.98x = 53,537,016.19
  5. Step 5: Solve for x
    x = 53,537,016.19/10,439.98
  6. Step 6: Final answer
    x = 5,128.08

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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.