Home / 11,366.78-15,685.01-6,331.46

Finding the Fourth Proportional to 11,366.78, 15,685.01 and 6,331.46

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Solution

The fourth proportional to 11,366.78, 15,685.01 and 6,331.46 is: 8,736.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.78 : 15,685.01 = 6,331.46 : x
  2. Step 2: Convert to fraction form
    11,366.78/15,685.01 = 6,331.46/x
  3. Step 3: Cross multiply
    11,366.78x = 15,685.01 × 6,331.46
  4. Step 4: Simplify right side
    11,366.78x = 99,308,903.33
  5. Step 5: Solve for x
    x = 99,308,903.33/11,366.78
  6. Step 6: Final answer
    x = 8,736.77

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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.