Home / 13,776.27-20,664.32-6,652.19

Finding the Fourth Proportional to 13,776.27, 20,664.32 and 6,652.19

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Solution

The fourth proportional to 13,776.27, 20,664.32 and 6,652.19 is: 9,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.27 : 20,664.32 = 6,652.19 : x
  2. Step 2: Convert to fraction form
    13,776.27/20,664.32 = 6,652.19/x
  3. Step 3: Cross multiply
    13,776.27x = 20,664.32 × 6,652.19
  4. Step 4: Simplify right side
    13,776.27x = 137,462,846.28
  5. Step 5: Solve for x
    x = 137,462,846.28/13,776.27
  6. Step 6: Final answer
    x = 9,978.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.