Home / 11,367.28-15,686.61-6,331.49

Finding the Fourth Proportional to 11,367.28, 15,686.61 and 6,331.49

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Solution

The fourth proportional to 11,367.28, 15,686.61 and 6,331.49 is: 8,737.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.28 : 15,686.61 = 6,331.49 : x
  2. Step 2: Convert to fraction form
    11,367.28/15,686.61 = 6,331.49/x
  3. Step 3: Cross multiply
    11,367.28x = 15,686.61 × 6,331.49
  4. Step 4: Simplify right side
    11,367.28x = 99,319,504.26
  5. Step 5: Solve for x
    x = 99,319,504.26/11,367.28
  6. Step 6: Final answer
    x = 8,737.31

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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.