Home / 7,930.77-11,887.56-5,159.42

Finding the Fourth Proportional to 7,930.77, 11,887.56 and 5,159.42

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Solution

The fourth proportional to 7,930.77, 11,887.56 and 5,159.42 is: 7,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.77 : 11,887.56 = 5,159.42 : x
  2. Step 2: Convert to fraction form
    7,930.77/11,887.56 = 5,159.42/x
  3. Step 3: Cross multiply
    7,930.77x = 11,887.56 × 5,159.42
  4. Step 4: Simplify right side
    7,930.77x = 61,332,855.38
  5. Step 5: Solve for x
    x = 61,332,855.38/7,930.77
  6. Step 6: Final answer
    x = 7,733.53

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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.