Home / 8,784.28-13,176.56-2,940.92

Finding the Fourth Proportional to 8,784.28, 13,176.56 and 2,940.92

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Solution

The fourth proportional to 8,784.28, 13,176.56 and 2,940.92 is: 4,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.28 : 13,176.56 = 2,940.92 : x
  2. Step 2: Convert to fraction form
    8,784.28/13,176.56 = 2,940.92/x
  3. Step 3: Cross multiply
    8,784.28x = 13,176.56 × 2,940.92
  4. Step 4: Simplify right side
    8,784.28x = 38,751,208.84
  5. Step 5: Solve for x
    x = 38,751,208.84/8,784.28
  6. Step 6: Final answer
    x = 4,411.43

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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.