Home / 8,785.10-12,123.75-5,008.84

Finding the Fourth Proportional to 8,785.10, 12,123.75 and 5,008.84

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Solution

The fourth proportional to 8,785.10, 12,123.75 and 5,008.84 is: 6,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.10 : 12,123.75 = 5,008.84 : x
  2. Step 2: Convert to fraction form
    8,785.10/12,123.75 = 5,008.84/x
  3. Step 3: Cross multiply
    8,785.10x = 12,123.75 × 5,008.84
  4. Step 4: Simplify right side
    8,785.10x = 60,725,923.95
  5. Step 5: Solve for x
    x = 60,725,923.95/8,785.10
  6. Step 6: Final answer
    x = 6,912.38

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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.