Home / 9,886.86-13,639.92-5,906.52

Finding the Fourth Proportional to 9,886.86, 13,639.92 and 5,906.52

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Solution

The fourth proportional to 9,886.86, 13,639.92 and 5,906.52 is: 8,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.86 : 13,639.92 = 5,906.52 : x
  2. Step 2: Convert to fraction form
    9,886.86/13,639.92 = 5,906.52/x
  3. Step 3: Cross multiply
    9,886.86x = 13,639.92 × 5,906.52
  4. Step 4: Simplify right side
    9,886.86x = 80,564,460.28
  5. Step 5: Solve for x
    x = 80,564,460.28/9,886.86
  6. Step 6: Final answer
    x = 8,148.64

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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.