Home / 7,917.91-10,926.83-4,381.11

Finding the Fourth Proportional to 7,917.91, 10,926.83 and 4,381.11

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Solution

The fourth proportional to 7,917.91, 10,926.83 and 4,381.11 is: 6,045.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.91 : 10,926.83 = 4,381.11 : x
  2. Step 2: Convert to fraction form
    7,917.91/10,926.83 = 4,381.11/x
  3. Step 3: Cross multiply
    7,917.91x = 10,926.83 × 4,381.11
  4. Step 4: Simplify right side
    7,917.91x = 47,871,644.18
  5. Step 5: Solve for x
    x = 47,871,644.18/7,917.91
  6. Step 6: Final answer
    x = 6,045.99

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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.