Home / 15,521.72-23,286.21-4,428.56

Finding the Fourth Proportional to 15,521.72, 23,286.21 and 4,428.56

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Solution

The fourth proportional to 15,521.72, 23,286.21 and 4,428.56 is: 6,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.72 : 23,286.21 = 4,428.56 : x
  2. Step 2: Convert to fraction form
    15,521.72/23,286.21 = 4,428.56/x
  3. Step 3: Cross multiply
    15,521.72x = 23,286.21 × 4,428.56
  4. Step 4: Simplify right side
    15,521.72x = 103,124,261.73
  5. Step 5: Solve for x
    x = 103,124,261.73/15,521.72
  6. Step 6: Final answer
    x = 6,643.87

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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.