Home / 8,743.05-12,037.55-8,146.89

Finding the Fourth Proportional to 8,743.05, 12,037.55 and 8,146.89

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Solution

The fourth proportional to 8,743.05, 12,037.55 and 8,146.89 is: 11,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.05 : 12,037.55 = 8,146.89 : x
  2. Step 2: Convert to fraction form
    8,743.05/12,037.55 = 8,146.89/x
  3. Step 3: Cross multiply
    8,743.05x = 12,037.55 × 8,146.89
  4. Step 4: Simplify right side
    8,743.05x = 98,068,554.99
  5. Step 5: Solve for x
    x = 98,068,554.99/8,743.05
  6. Step 6: Final answer
    x = 11,216.74

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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.