Home / 19,318.16-28,982.74-6,171.56

Finding the Fourth Proportional to 19,318.16, 28,982.74 and 6,171.56

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Solution

The fourth proportional to 19,318.16, 28,982.74 and 6,171.56 is: 9,259.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.16 : 28,982.74 = 6,171.56 : x
  2. Step 2: Convert to fraction form
    19,318.16/28,982.74 = 6,171.56/x
  3. Step 3: Cross multiply
    19,318.16x = 28,982.74 × 6,171.56
  4. Step 4: Simplify right side
    19,318.16x = 178,868,718.87
  5. Step 5: Solve for x
    x = 178,868,718.87/19,318.16
  6. Step 6: Final answer
    x = 9,259.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.