Home / 8,231.79-11,358.12-4,875.66

Finding the Fourth Proportional to 8,231.79, 11,358.12 and 4,875.66

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Solution

The fourth proportional to 8,231.79, 11,358.12 and 4,875.66 is: 6,727.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.79 : 11,358.12 = 4,875.66 : x
  2. Step 2: Convert to fraction form
    8,231.79/11,358.12 = 4,875.66/x
  3. Step 3: Cross multiply
    8,231.79x = 11,358.12 × 4,875.66
  4. Step 4: Simplify right side
    8,231.79x = 55,378,331.36
  5. Step 5: Solve for x
    x = 55,378,331.36/8,231.79
  6. Step 6: Final answer
    x = 6,727.37

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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.