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Finding the Fourth Proportional to 15,095.25, 20,831.45 and 8,806.41

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Solution

The fourth proportional to 15,095.25, 20,831.45 and 8,806.41 is: 12,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,095.25 : 20,831.45 = 8,806.41 : x
  2. Step 2: Convert to fraction form
    15,095.25/20,831.45 = 8,806.41/x
  3. Step 3: Cross multiply
    15,095.25x = 20,831.45 × 8,806.41
  4. Step 4: Simplify right side
    15,095.25x = 183,450,245.56
  5. Step 5: Solve for x
    x = 183,450,245.56/15,095.25
  6. Step 6: Final answer
    x = 12,152.85

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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.