Home / 7,918.35-10,926.86-4,381.38

Finding the Fourth Proportional to 7,918.35, 10,926.86 and 4,381.38

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Solution

The fourth proportional to 7,918.35, 10,926.86 and 4,381.38 is: 6,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.35 : 10,926.86 = 4,381.38 : x
  2. Step 2: Convert to fraction form
    7,918.35/10,926.86 = 4,381.38/x
  3. Step 3: Cross multiply
    7,918.35x = 10,926.86 × 4,381.38
  4. Step 4: Simplify right side
    7,918.35x = 47,874,725.87
  5. Step 5: Solve for x
    x = 47,874,725.87/7,918.35
  6. Step 6: Final answer
    x = 6,046.05

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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.