Home / 10,235.90-15,350.57-3,994.39

Finding the Fourth Proportional to 10,235.90, 15,350.57 and 3,994.39

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Solution

The fourth proportional to 10,235.90, 15,350.57 and 3,994.39 is: 5,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.90 : 15,350.57 = 3,994.39 : x
  2. Step 2: Convert to fraction form
    10,235.90/15,350.57 = 3,994.39/x
  3. Step 3: Cross multiply
    10,235.90x = 15,350.57 × 3,994.39
  4. Step 4: Simplify right side
    10,235.90x = 61,316,134.91
  5. Step 5: Solve for x
    x = 61,316,134.91/10,235.90
  6. Step 6: Final answer
    x = 5,990.31

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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.