Home / 7,930.07-11,886.50-5,158.73

Finding the Fourth Proportional to 7,930.07, 11,886.50 and 5,158.73

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Solution

The fourth proportional to 7,930.07, 11,886.50 and 5,158.73 is: 7,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.07 : 11,886.50 = 5,158.73 : x
  2. Step 2: Convert to fraction form
    7,930.07/11,886.50 = 5,158.73/x
  3. Step 3: Cross multiply
    7,930.07x = 11,886.50 × 5,158.73
  4. Step 4: Simplify right side
    7,930.07x = 61,319,158.92
  5. Step 5: Solve for x
    x = 61,319,158.92/7,930.07
  6. Step 6: Final answer
    x = 7,732.49

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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.