Home / 7,917.88-10,926.75-4,381.42

Finding the Fourth Proportional to 7,917.88, 10,926.75 and 4,381.42

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Solution

The fourth proportional to 7,917.88, 10,926.75 and 4,381.42 is: 6,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.88 : 10,926.75 = 4,381.42 : x
  2. Step 2: Convert to fraction form
    7,917.88/10,926.75 = 4,381.42/x
  3. Step 3: Cross multiply
    7,917.88x = 10,926.75 × 4,381.42
  4. Step 4: Simplify right side
    7,917.88x = 47,874,680.99
  5. Step 5: Solve for x
    x = 47,874,680.99/7,917.88
  6. Step 6: Final answer
    x = 6,046.40

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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.