Home / 7,900.20-10,903.71-4,713.72

Finding the Fourth Proportional to 7,900.20, 10,903.71 and 4,713.72

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Solution

The fourth proportional to 7,900.20, 10,903.71 and 4,713.72 is: 6,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.20 : 10,903.71 = 4,713.72 : x
  2. Step 2: Convert to fraction form
    7,900.20/10,903.71 = 4,713.72/x
  3. Step 3: Cross multiply
    7,900.20x = 10,903.71 × 4,713.72
  4. Step 4: Simplify right side
    7,900.20x = 51,397,035.90
  5. Step 5: Solve for x
    x = 51,397,035.90/7,900.20
  6. Step 6: Final answer
    x = 6,505.79

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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.