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Finding the Fourth Proportional to 14,599.91, 20,149.46 and 8,938.47

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Solution

The fourth proportional to 14,599.91, 20,149.46 and 8,938.47 is: 12,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,599.91 : 20,149.46 = 8,938.47 : x
  2. Step 2: Convert to fraction form
    14,599.91/20,149.46 = 8,938.47/x
  3. Step 3: Cross multiply
    14,599.91x = 20,149.46 × 8,938.47
  4. Step 4: Simplify right side
    14,599.91x = 180,105,299.03
  5. Step 5: Solve for x
    x = 180,105,299.03/14,599.91
  6. Step 6: Final answer
    x = 12,336.05

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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.