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Finding the Fourth Proportional to 15,922.60, 21,972.54 and 8,848.60

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Solution

The fourth proportional to 15,922.60, 21,972.54 and 8,848.60 is: 12,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.60 : 21,972.54 = 8,848.60 : x
  2. Step 2: Convert to fraction form
    15,922.60/21,972.54 = 8,848.60/x
  3. Step 3: Cross multiply
    15,922.60x = 21,972.54 × 8,848.60
  4. Step 4: Simplify right side
    15,922.60x = 194,426,217.44
  5. Step 5: Solve for x
    x = 194,426,217.44/15,922.60
  6. Step 6: Final answer
    x = 12,210.71

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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.