Home / 13,564.50-20,439.17-11,153.33

Finding the Fourth Proportional to 13,564.50, 20,439.17 and 11,153.33

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Solution

The fourth proportional to 13,564.50, 20,439.17 and 11,153.33 is: 16,805.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.50 : 20,439.17 = 11,153.33 : x
  2. Step 2: Convert to fraction form
    13,564.50/20,439.17 = 11,153.33/x
  3. Step 3: Cross multiply
    13,564.50x = 20,439.17 × 11,153.33
  4. Step 4: Simplify right side
    13,564.50x = 227,964,807.94
  5. Step 5: Solve for x
    x = 227,964,807.94/13,564.50
  6. Step 6: Final answer
    x = 16,805.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.