Home / 13,887.35-20,806.72-11,562.29

Finding the Fourth Proportional to 13,887.35, 20,806.72 and 11,562.29

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Solution

The fourth proportional to 13,887.35, 20,806.72 and 11,562.29 is: 17,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.35 : 20,806.72 = 11,562.29 : x
  2. Step 2: Convert to fraction form
    13,887.35/20,806.72 = 11,562.29/x
  3. Step 3: Cross multiply
    13,887.35x = 20,806.72 × 11,562.29
  4. Step 4: Simplify right side
    13,887.35x = 240,573,457.75
  5. Step 5: Solve for x
    x = 240,573,457.75/13,887.35
  6. Step 6: Final answer
    x = 17,323.21

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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.