Home / 13,521.06-20,248.47-11,166.66

Finding the Fourth Proportional to 13,521.06, 20,248.47 and 11,166.66

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Solution

The fourth proportional to 13,521.06, 20,248.47 and 11,166.66 is: 16,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.06 : 20,248.47 = 11,166.66 : x
  2. Step 2: Convert to fraction form
    13,521.06/20,248.47 = 11,166.66/x
  3. Step 3: Cross multiply
    13,521.06x = 20,248.47 × 11,166.66
  4. Step 4: Simplify right side
    13,521.06x = 226,107,780.01
  5. Step 5: Solve for x
    x = 226,107,780.01/13,521.06
  6. Step 6: Final answer
    x = 16,722.64

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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.