Home / 9,939.42-13,711.89-6,161.58

Finding the Fourth Proportional to 9,939.42, 13,711.89 and 6,161.58

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Solution

The fourth proportional to 9,939.42, 13,711.89 and 6,161.58 is: 8,500.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.42 : 13,711.89 = 6,161.58 : x
  2. Step 2: Convert to fraction form
    9,939.42/13,711.89 = 6,161.58/x
  3. Step 3: Cross multiply
    9,939.42x = 13,711.89 × 6,161.58
  4. Step 4: Simplify right side
    9,939.42x = 84,486,907.19
  5. Step 5: Solve for x
    x = 84,486,907.19/9,939.42
  6. Step 6: Final answer
    x = 8,500.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.