Home / 13,520.11-20,252.63-11,030.17

Finding the Fourth Proportional to 13,520.11, 20,252.63 and 11,030.17

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Solution

The fourth proportional to 13,520.11, 20,252.63 and 11,030.17 is: 16,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.11 : 20,252.63 = 11,030.17 : x
  2. Step 2: Convert to fraction form
    13,520.11/20,252.63 = 11,030.17/x
  3. Step 3: Cross multiply
    13,520.11x = 20,252.63 × 11,030.17
  4. Step 4: Simplify right side
    13,520.11x = 223,389,974.90
  5. Step 5: Solve for x
    x = 223,389,974.90/13,520.11
  6. Step 6: Final answer
    x = 16,522.79

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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.