Home / 8,089.40-11,166.81-5,438.34

Finding the Fourth Proportional to 8,089.40, 11,166.81 and 5,438.34

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Solution

The fourth proportional to 8,089.40, 11,166.81 and 5,438.34 is: 7,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.40 : 11,166.81 = 5,438.34 : x
  2. Step 2: Convert to fraction form
    8,089.40/11,166.81 = 5,438.34/x
  3. Step 3: Cross multiply
    8,089.40x = 11,166.81 × 5,438.34
  4. Step 4: Simplify right side
    8,089.40x = 60,728,979.55
  5. Step 5: Solve for x
    x = 60,728,979.55/8,089.40
  6. Step 6: Final answer
    x = 7,507.23

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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.