Home / 11,331.78-15,636.09-6,295.51

Finding the Fourth Proportional to 11,331.78, 15,636.09 and 6,295.51

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Solution

The fourth proportional to 11,331.78, 15,636.09 and 6,295.51 is: 8,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.78 : 15,636.09 = 6,295.51 : x
  2. Step 2: Convert to fraction form
    11,331.78/15,636.09 = 6,295.51/x
  3. Step 3: Cross multiply
    11,331.78x = 15,636.09 × 6,295.51
  4. Step 4: Simplify right side
    11,331.78x = 98,437,160.96
  5. Step 5: Solve for x
    x = 98,437,160.96/11,331.78
  6. Step 6: Final answer
    x = 8,686.82

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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.