Home / 8,785.53-12,123.68-5,250.69

Finding the Fourth Proportional to 8,785.53, 12,123.68 and 5,250.69

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Solution

The fourth proportional to 8,785.53, 12,123.68 and 5,250.69 is: 7,245.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.53 : 12,123.68 = 5,250.69 : x
  2. Step 2: Convert to fraction form
    8,785.53/12,123.68 = 5,250.69/x
  3. Step 3: Cross multiply
    8,785.53x = 12,123.68 × 5,250.69
  4. Step 4: Simplify right side
    8,785.53x = 63,657,659.09
  5. Step 5: Solve for x
    x = 63,657,659.09/8,785.53
  6. Step 6: Final answer
    x = 7,245.74

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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.