Home / 15,683.24-21,642.66-8,969.96

Finding the Fourth Proportional to 15,683.24, 21,642.66 and 8,969.96

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Solution

The fourth proportional to 15,683.24, 21,642.66 and 8,969.96 is: 12,378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,683.24 : 21,642.66 = 8,969.96 : x
  2. Step 2: Convert to fraction form
    15,683.24/21,642.66 = 8,969.96/x
  3. Step 3: Cross multiply
    15,683.24x = 21,642.66 × 8,969.96
  4. Step 4: Simplify right side
    15,683.24x = 194,133,794.49
  5. Step 5: Solve for x
    x = 194,133,794.49/15,683.24
  6. Step 6: Final answer
    x = 12,378.42

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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.