Home / 7,926.91-10,917.08-6,127.76

Finding the Fourth Proportional to 7,926.91, 10,917.08 and 6,127.76

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Solution

The fourth proportional to 7,926.91, 10,917.08 and 6,127.76 is: 8,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.91 : 10,917.08 = 6,127.76 : x
  2. Step 2: Convert to fraction form
    7,926.91/10,917.08 = 6,127.76/x
  3. Step 3: Cross multiply
    7,926.91x = 10,917.08 × 6,127.76
  4. Step 4: Simplify right side
    7,926.91x = 66,897,246.14
  5. Step 5: Solve for x
    x = 66,897,246.14/7,926.91
  6. Step 6: Final answer
    x = 8,439.26

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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.