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Finding the Fourth Proportional to 15,644.21, 23,436.08 and 8,697.65

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Solution

The fourth proportional to 15,644.21, 23,436.08 and 8,697.65 is: 13,029.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.21 : 23,436.08 = 8,697.65 : x
  2. Step 2: Convert to fraction form
    15,644.21/23,436.08 = 8,697.65/x
  3. Step 3: Cross multiply
    15,644.21x = 23,436.08 × 8,697.65
  4. Step 4: Simplify right side
    15,644.21x = 203,838,868.93
  5. Step 5: Solve for x
    x = 203,838,868.93/15,644.21
  6. Step 6: Final answer
    x = 13,029.67

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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.