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Finding the Fourth Proportional to 15,215.76, 22,838.04 and 8,295.12

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Solution

The fourth proportional to 15,215.76, 22,838.04 and 8,295.12 is: 12,450.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215.76 : 22,838.04 = 8,295.12 : x
  2. Step 2: Convert to fraction form
    15,215.76/22,838.04 = 8,295.12/x
  3. Step 3: Cross multiply
    15,215.76x = 22,838.04 × 8,295.12
  4. Step 4: Simplify right side
    15,215.76x = 189,444,282.36
  5. Step 5: Solve for x
    x = 189,444,282.36/15,215.76
  6. Step 6: Final answer
    x = 12,450.53

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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.