Home / 13,521.84-20,235.24-11,695.92

Finding the Fourth Proportional to 13,521.84, 20,235.24 and 11,695.92

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Solution

The fourth proportional to 13,521.84, 20,235.24 and 11,695.92 is: 17,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.84 : 20,235.24 = 11,695.92 : x
  2. Step 2: Convert to fraction form
    13,521.84/20,235.24 = 11,695.92/x
  3. Step 3: Cross multiply
    13,521.84x = 20,235.24 × 11,695.92
  4. Step 4: Simplify right side
    13,521.84x = 236,669,748.22
  5. Step 5: Solve for x
    x = 236,669,748.22/13,521.84
  6. Step 6: Final answer
    x = 17,502.78

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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.