Home / 7,921.93-10,930.39-5,051.83

Finding the Fourth Proportional to 7,921.93, 10,930.39 and 5,051.83

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Solution

The fourth proportional to 7,921.93, 10,930.39 and 5,051.83 is: 6,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.93 : 10,930.39 = 5,051.83 : x
  2. Step 2: Convert to fraction form
    7,921.93/10,930.39 = 5,051.83/x
  3. Step 3: Cross multiply
    7,921.93x = 10,930.39 × 5,051.83
  4. Step 4: Simplify right side
    7,921.93x = 55,218,472.11
  5. Step 5: Solve for x
    x = 55,218,472.11/7,921.93
  6. Step 6: Final answer
    x = 6,970.33

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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.