Home / 17,640.81-24,344.60-9,683.78

Finding the Fourth Proportional to 17,640.81, 24,344.60 and 9,683.78

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Solution

The fourth proportional to 17,640.81, 24,344.60 and 9,683.78 is: 13,363.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.81 : 24,344.60 = 9,683.78 : x
  2. Step 2: Convert to fraction form
    17,640.81/24,344.60 = 9,683.78/x
  3. Step 3: Cross multiply
    17,640.81x = 24,344.60 × 9,683.78
  4. Step 4: Simplify right side
    17,640.81x = 235,747,580.45
  5. Step 5: Solve for x
    x = 235,747,580.45/17,640.81
  6. Step 6: Final answer
    x = 13,363.76

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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.