Home / 7,983.15-11,014.14-5,331.21

Finding the Fourth Proportional to 7,983.15, 11,014.14 and 5,331.21

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Solution

The fourth proportional to 7,983.15, 11,014.14 and 5,331.21 is: 7,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.15 : 11,014.14 = 5,331.21 : x
  2. Step 2: Convert to fraction form
    7,983.15/11,014.14 = 5,331.21/x
  3. Step 3: Cross multiply
    7,983.15x = 11,014.14 × 5,331.21
  4. Step 4: Simplify right side
    7,983.15x = 58,718,693.31
  5. Step 5: Solve for x
    x = 58,718,693.31/7,983.15
  6. Step 6: Final answer
    x = 7,355.33

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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.