Home / 8,827.48-12,178.44-5,685.49

Finding the Fourth Proportional to 8,827.48, 12,178.44 and 5,685.49

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Solution

The fourth proportional to 8,827.48, 12,178.44 and 5,685.49 is: 7,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.48 : 12,178.44 = 5,685.49 : x
  2. Step 2: Convert to fraction form
    8,827.48/12,178.44 = 5,685.49/x
  3. Step 3: Cross multiply
    8,827.48x = 12,178.44 × 5,685.49
  4. Step 4: Simplify right side
    8,827.48x = 69,240,398.84
  5. Step 5: Solve for x
    x = 69,240,398.84/8,827.48
  6. Step 6: Final answer
    x = 7,843.73

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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.