Home / 11,006.64-15,188.94-6,290.28

Finding the Fourth Proportional to 11,006.64, 15,188.94 and 6,290.28

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Solution

The fourth proportional to 11,006.64, 15,188.94 and 6,290.28 is: 8,680.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.64 : 15,188.94 = 6,290.28 : x
  2. Step 2: Convert to fraction form
    11,006.64/15,188.94 = 6,290.28/x
  3. Step 3: Cross multiply
    11,006.64x = 15,188.94 × 6,290.28
  4. Step 4: Simplify right side
    11,006.64x = 95,542,685.50
  5. Step 5: Solve for x
    x = 95,542,685.50/11,006.64
  6. Step 6: Final answer
    x = 8,680.46

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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.