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Finding the Fourth Proportional to 8,124.77, 12,187.16 and 2,930.65

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Solution

The fourth proportional to 8,124.77, 12,187.16 and 2,930.65 is: 4,395.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.77 : 12,187.16 = 2,930.65 : x
  2. Step 2: Convert to fraction form
    8,124.77/12,187.16 = 2,930.65/x
  3. Step 3: Cross multiply
    8,124.77x = 12,187.16 × 2,930.65
  4. Step 4: Simplify right side
    8,124.77x = 35,716,266.32
  5. Step 5: Solve for x
    x = 35,716,266.32/8,124.77
  6. Step 6: Final answer
    x = 4,395.97

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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.