Home / 15,821.92-21,833.84-8,748.16

Finding the Fourth Proportional to 15,821.92, 21,833.84 and 8,748.16

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Solution

The fourth proportional to 15,821.92, 21,833.84 and 8,748.16 is: 12,072.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.92 : 21,833.84 = 8,748.16 : x
  2. Step 2: Convert to fraction form
    15,821.92/21,833.84 = 8,748.16/x
  3. Step 3: Cross multiply
    15,821.92x = 21,833.84 × 8,748.16
  4. Step 4: Simplify right side
    15,821.92x = 191,005,925.73
  5. Step 5: Solve for x
    x = 191,005,925.73/15,821.92
  6. Step 6: Final answer
    x = 12,072.23

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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.