Home / 7,917.76-10,926.24-4,381.12

Finding the Fourth Proportional to 7,917.76, 10,926.24 and 4,381.12

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Solution

The fourth proportional to 7,917.76, 10,926.24 and 4,381.12 is: 6,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.76 : 10,926.24 = 4,381.12 : x
  2. Step 2: Convert to fraction form
    7,917.76/10,926.24 = 4,381.12/x
  3. Step 3: Cross multiply
    7,917.76x = 10,926.24 × 4,381.12
  4. Step 4: Simplify right side
    7,917.76x = 47,869,168.59
  5. Step 5: Solve for x
    x = 47,869,168.59/7,917.76
  6. Step 6: Final answer
    x = 6,045.80

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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.