Home / 10,639.80-14,683.14-6,165

Finding the Fourth Proportional to 10,639.80, 14,683.14 and 6,165

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Solution

The fourth proportional to 10,639.80, 14,683.14 and 6,165 is: 8,507.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.80 : 14,683.14 = 6,165 : x
  2. Step 2: Convert to fraction form
    10,639.80/14,683.14 = 6,165/x
  3. Step 3: Cross multiply
    10,639.80x = 14,683.14 × 6,165
  4. Step 4: Simplify right side
    10,639.80x = 90,521,558.10
  5. Step 5: Solve for x
    x = 90,521,558.10/10,639.80
  6. Step 6: Final answer
    x = 8,507.83

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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.