Home / 10,930.69-15,083.13-6,149.71

Finding the Fourth Proportional to 10,930.69, 15,083.13 and 6,149.71

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Solution

The fourth proportional to 10,930.69, 15,083.13 and 6,149.71 is: 8,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.69 : 15,083.13 = 6,149.71 : x
  2. Step 2: Convert to fraction form
    10,930.69/15,083.13 = 6,149.71/x
  3. Step 3: Cross multiply
    10,930.69x = 15,083.13 × 6,149.71
  4. Step 4: Simplify right side
    10,930.69x = 92,756,875.39
  5. Step 5: Solve for x
    x = 92,756,875.39/10,930.69
  6. Step 6: Final answer
    x = 8,485.91

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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.