Home / 8,849.79-12,212.96-4,871.15

Finding the Fourth Proportional to 8,849.79, 12,212.96 and 4,871.15

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Solution

The fourth proportional to 8,849.79, 12,212.96 and 4,871.15 is: 6,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.79 : 12,212.96 = 4,871.15 : x
  2. Step 2: Convert to fraction form
    8,849.79/12,212.96 = 4,871.15/x
  3. Step 3: Cross multiply
    8,849.79x = 12,212.96 × 4,871.15
  4. Step 4: Simplify right side
    8,849.79x = 59,491,120.48
  5. Step 5: Solve for x
    x = 59,491,120.48/8,849.79
  6. Step 6: Final answer
    x = 6,722.32

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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.