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Finding the Fourth Proportional to 8,927.84, 12,321.20 and 5,203.04

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Solution

The fourth proportional to 8,927.84, 12,321.20 and 5,203.04 is: 7,180.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.84 : 12,321.20 = 5,203.04 : x
  2. Step 2: Convert to fraction form
    8,927.84/12,321.20 = 5,203.04/x
  3. Step 3: Cross multiply
    8,927.84x = 12,321.20 × 5,203.04
  4. Step 4: Simplify right side
    8,927.84x = 64,107,696.45
  5. Step 5: Solve for x
    x = 64,107,696.45/8,927.84
  6. Step 6: Final answer
    x = 7,180.65

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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.