Home / 13,521.10-20,282.91-3,660.46

Finding the Fourth Proportional to 13,521.10, 20,282.91 and 3,660.46

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Solution

The fourth proportional to 13,521.10, 20,282.91 and 3,660.46 is: 5,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.10 : 20,282.91 = 3,660.46 : x
  2. Step 2: Convert to fraction form
    13,521.10/20,282.91 = 3,660.46/x
  3. Step 3: Cross multiply
    13,521.10x = 20,282.91 × 3,660.46
  4. Step 4: Simplify right side
    13,521.10x = 74,244,780.74
  5. Step 5: Solve for x
    x = 74,244,780.74/13,521.10
  6. Step 6: Final answer
    x = 5,491.03

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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.