Home / 10,158.30-15,239.94-3,494.90

Finding the Fourth Proportional to 10,158.30, 15,239.94 and 3,494.90

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Solution

The fourth proportional to 10,158.30, 15,239.94 and 3,494.90 is: 5,243.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.30 : 15,239.94 = 3,494.90 : x
  2. Step 2: Convert to fraction form
    10,158.30/15,239.94 = 3,494.90/x
  3. Step 3: Cross multiply
    10,158.30x = 15,239.94 × 3,494.90
  4. Step 4: Simplify right side
    10,158.30x = 53,262,048.83
  5. Step 5: Solve for x
    x = 53,262,048.83/10,158.30
  6. Step 6: Final answer
    x = 5,243.20

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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.