Home / 7,931.03-10,939.87-5,102.09

Finding the Fourth Proportional to 7,931.03, 10,939.87 and 5,102.09

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Solution

The fourth proportional to 7,931.03, 10,939.87 and 5,102.09 is: 7,037.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.03 : 10,939.87 = 5,102.09 : x
  2. Step 2: Convert to fraction form
    7,931.03/10,939.87 = 5,102.09/x
  3. Step 3: Cross multiply
    7,931.03x = 10,939.87 × 5,102.09
  4. Step 4: Simplify right side
    7,931.03x = 55,816,201.33
  5. Step 5: Solve for x
    x = 55,816,201.33/7,931.03
  6. Step 6: Final answer
    x = 7,037.70

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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.