Home / 10,311.42-15,466.35-3,291.15

Finding the Fourth Proportional to 10,311.42, 15,466.35 and 3,291.15

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Solution

The fourth proportional to 10,311.42, 15,466.35 and 3,291.15 is: 4,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.42 : 15,466.35 = 3,291.15 : x
  2. Step 2: Convert to fraction form
    10,311.42/15,466.35 = 3,291.15/x
  3. Step 3: Cross multiply
    10,311.42x = 15,466.35 × 3,291.15
  4. Step 4: Simplify right side
    10,311.42x = 50,902,077.80
  5. Step 5: Solve for x
    x = 50,902,077.80/10,311.42
  6. Step 6: Final answer
    x = 4,936.48

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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.