Home / 7,917.70-10,926.27-4,381.06

Finding the Fourth Proportional to 7,917.70, 10,926.27 and 4,381.06

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Solution

The fourth proportional to 7,917.70, 10,926.27 and 4,381.06 is: 6,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.70 : 10,926.27 = 4,381.06 : x
  2. Step 2: Convert to fraction form
    7,917.70/10,926.27 = 4,381.06/x
  3. Step 3: Cross multiply
    7,917.70x = 10,926.27 × 4,381.06
  4. Step 4: Simplify right side
    7,917.70x = 47,868,644.45
  5. Step 5: Solve for x
    x = 47,868,644.45/7,917.70
  6. Step 6: Final answer
    x = 6,045.78

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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.