Home / 13,503.12-20,188.12-11,446.13

Finding the Fourth Proportional to 13,503.12, 20,188.12 and 11,446.13

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Solution

The fourth proportional to 13,503.12, 20,188.12 and 11,446.13 is: 17,112.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.12 : 20,188.12 = 11,446.13 : x
  2. Step 2: Convert to fraction form
    13,503.12/20,188.12 = 11,446.13/x
  3. Step 3: Cross multiply
    13,503.12x = 20,188.12 × 11,446.13
  4. Step 4: Simplify right side
    13,503.12x = 231,075,845.98
  5. Step 5: Solve for x
    x = 231,075,845.98/13,503.12
  6. Step 6: Final answer
    x = 17,112.77

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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.