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Finding the Fourth Proportional to 15,350.62, 21,183.74 and 8,726.62

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Solution

The fourth proportional to 15,350.62, 21,183.74 and 8,726.62 is: 12,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.62 : 21,183.74 = 8,726.62 : x
  2. Step 2: Convert to fraction form
    15,350.62/21,183.74 = 8,726.62/x
  3. Step 3: Cross multiply
    15,350.62x = 21,183.74 × 8,726.62
  4. Step 4: Simplify right side
    15,350.62x = 184,862,449.16
  5. Step 5: Solve for x
    x = 184,862,449.16/15,350.62
  6. Step 6: Final answer
    x = 12,042.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.