Home / 9,877.27-13,639.78-6,346.68

Finding the Fourth Proportional to 9,877.27, 13,639.78 and 6,346.68

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Solution

The fourth proportional to 9,877.27, 13,639.78 and 6,346.68 is: 8,764.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,877.27 : 13,639.78 = 6,346.68 : x
  2. Step 2: Convert to fraction form
    9,877.27/13,639.78 = 6,346.68/x
  3. Step 3: Cross multiply
    9,877.27x = 13,639.78 × 6,346.68
  4. Step 4: Simplify right side
    9,877.27x = 86,567,318.93
  5. Step 5: Solve for x
    x = 86,567,318.93/9,877.27
  6. Step 6: Final answer
    x = 8,764.30

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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.