Home / 13,521.11-20,254.13-11,031.17

Finding the Fourth Proportional to 13,521.11, 20,254.13 and 11,031.17

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Solution

The fourth proportional to 13,521.11, 20,254.13 and 11,031.17 is: 16,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.11 : 20,254.13 = 11,031.17 : x
  2. Step 2: Convert to fraction form
    13,521.11/20,254.13 = 11,031.17/x
  3. Step 3: Cross multiply
    13,521.11x = 20,254.13 × 11,031.17
  4. Step 4: Simplify right side
    13,521.11x = 223,426,751.23
  5. Step 5: Solve for x
    x = 223,426,751.23/13,521.11
  6. Step 6: Final answer
    x = 16,524.29

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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.