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Finding the Fourth Proportional to 14,841.58, 20,478 and 8,872.24

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Solution

The fourth proportional to 14,841.58, 20,478 and 8,872.24 is: 12,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.58 : 20,478 = 8,872.24 : x
  2. Step 2: Convert to fraction form
    14,841.58/20,478 = 8,872.24/x
  3. Step 3: Cross multiply
    14,841.58x = 20,478 × 8,872.24
  4. Step 4: Simplify right side
    14,841.58x = 181,685,730.72
  5. Step 5: Solve for x
    x = 181,685,730.72/14,841.58
  6. Step 6: Final answer
    x = 12,241.67

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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.