Home / 13,613.57-20,381.40-9,223.23

Finding the Fourth Proportional to 13,613.57, 20,381.40 and 9,223.23

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Solution

The fourth proportional to 13,613.57, 20,381.40 and 9,223.23 is: 13,808.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.57 : 20,381.40 = 9,223.23 : x
  2. Step 2: Convert to fraction form
    13,613.57/20,381.40 = 9,223.23/x
  3. Step 3: Cross multiply
    13,613.57x = 20,381.40 × 9,223.23
  4. Step 4: Simplify right side
    13,613.57x = 187,982,339.92
  5. Step 5: Solve for x
    x = 187,982,339.92/13,613.57
  6. Step 6: Final answer
    x = 13,808.46

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1.5x scale

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.