Home / 7,928.80-10,938.18-5,939.44

Finding the Fourth Proportional to 7,928.80, 10,938.18 and 5,939.44

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Solution

The fourth proportional to 7,928.80, 10,938.18 and 5,939.44 is: 8,193.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.80 : 10,938.18 = 5,939.44 : x
  2. Step 2: Convert to fraction form
    7,928.80/10,938.18 = 5,939.44/x
  3. Step 3: Cross multiply
    7,928.80x = 10,938.18 × 5,939.44
  4. Step 4: Simplify right side
    7,928.80x = 64,966,663.82
  5. Step 5: Solve for x
    x = 64,966,663.82/7,928.80
  6. Step 6: Final answer
    x = 8,193.76

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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.