Home / 13,521.44-20,282.16-4,288.16

Finding the Fourth Proportional to 13,521.44, 20,282.16 and 4,288.16

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Solution

The fourth proportional to 13,521.44, 20,282.16 and 4,288.16 is: 6,432.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.44 : 20,282.16 = 4,288.16 : x
  2. Step 2: Convert to fraction form
    13,521.44/20,282.16 = 4,288.16/x
  3. Step 3: Cross multiply
    13,521.44x = 20,282.16 × 4,288.16
  4. Step 4: Simplify right side
    13,521.44x = 86,973,147.23
  5. Step 5: Solve for x
    x = 86,973,147.23/13,521.44
  6. Step 6: Final answer
    x = 6,432.24

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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.