Home / 9,439.86-14,161.50-3,890.12

Finding the Fourth Proportional to 9,439.86, 14,161.50 and 3,890.12

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Solution

The fourth proportional to 9,439.86, 14,161.50 and 3,890.12 is: 5,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.86 : 14,161.50 = 3,890.12 : x
  2. Step 2: Convert to fraction form
    9,439.86/14,161.50 = 3,890.12/x
  3. Step 3: Cross multiply
    9,439.86x = 14,161.50 × 3,890.12
  4. Step 4: Simplify right side
    9,439.86x = 55,089,934.38
  5. Step 5: Solve for x
    x = 55,089,934.38/9,439.86
  6. Step 6: Final answer
    x = 5,835.88

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Double scale
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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.