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Finding the Fourth Proportional to 8,842.80, 13,253.40 and 3,907.20

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Solution

The fourth proportional to 8,842.80, 13,253.40 and 3,907.20 is: 5,856.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.80 : 13,253.40 = 3,907.20 : x
  2. Step 2: Convert to fraction form
    8,842.80/13,253.40 = 3,907.20/x
  3. Step 3: Cross multiply
    8,842.80x = 13,253.40 × 3,907.20
  4. Step 4: Simplify right side
    8,842.80x = 51,783,684.48
  5. Step 5: Solve for x
    x = 51,783,684.48/8,842.80
  6. Step 6: Final answer
    x = 5,856.03

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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.