Home / 7,931.07-10,939.92-5,102.13

Finding the Fourth Proportional to 7,931.07, 10,939.92 and 5,102.13

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Solution

The fourth proportional to 7,931.07, 10,939.92 and 5,102.13 is: 7,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.07 : 10,939.92 = 5,102.13 : x
  2. Step 2: Convert to fraction form
    7,931.07/10,939.92 = 5,102.13/x
  3. Step 3: Cross multiply
    7,931.07x = 10,939.92 × 5,102.13
  4. Step 4: Simplify right side
    7,931.07x = 55,816,826.57
  5. Step 5: Solve for x
    x = 55,816,826.57/7,931.07
  6. Step 6: Final answer
    x = 7,037.74

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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.