Home / 8,982.89-12,395.68-5,398.03

Finding the Fourth Proportional to 8,982.89, 12,395.68 and 5,398.03

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Solution

The fourth proportional to 8,982.89, 12,395.68 and 5,398.03 is: 7,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.89 : 12,395.68 = 5,398.03 : x
  2. Step 2: Convert to fraction form
    8,982.89/12,395.68 = 5,398.03/x
  3. Step 3: Cross multiply
    8,982.89x = 12,395.68 × 5,398.03
  4. Step 4: Simplify right side
    8,982.89x = 66,912,252.51
  5. Step 5: Solve for x
    x = 66,912,252.51/8,982.89
  6. Step 6: Final answer
    x = 7,448.86

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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.