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Finding the Fourth Proportional to 15,137.48, 22,711.02 and 8,208.20

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Solution

The fourth proportional to 15,137.48, 22,711.02 and 8,208.20 is: 12,314.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,137.48 : 22,711.02 = 8,208.20 : x
  2. Step 2: Convert to fraction form
    15,137.48/22,711.02 = 8,208.20/x
  3. Step 3: Cross multiply
    15,137.48x = 22,711.02 × 8,208.20
  4. Step 4: Simplify right side
    15,137.48x = 186,416,594.36
  5. Step 5: Solve for x
    x = 186,416,594.36/15,137.48
  6. Step 6: Final answer
    x = 12,314.90

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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.