Home / 8,631.81-11,914.83-5,982.71

Finding the Fourth Proportional to 8,631.81, 11,914.83 and 5,982.71

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Solution

The fourth proportional to 8,631.81, 11,914.83 and 5,982.71 is: 8,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.81 : 11,914.83 = 5,982.71 : x
  2. Step 2: Convert to fraction form
    8,631.81/11,914.83 = 5,982.71/x
  3. Step 3: Cross multiply
    8,631.81x = 11,914.83 × 5,982.71
  4. Step 4: Simplify right side
    8,631.81x = 71,282,913.02
  5. Step 5: Solve for x
    x = 71,282,913.02/8,631.81
  6. Step 6: Final answer
    x = 8,258.17

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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.