Home / 7,921.27-11,877.85-4,225.51

Finding the Fourth Proportional to 7,921.27, 11,877.85 and 4,225.51

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Solution

The fourth proportional to 7,921.27, 11,877.85 and 4,225.51 is: 6,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.27 : 11,877.85 = 4,225.51 : x
  2. Step 2: Convert to fraction form
    7,921.27/11,877.85 = 4,225.51/x
  3. Step 3: Cross multiply
    7,921.27x = 11,877.85 × 4,225.51
  4. Step 4: Simplify right side
    7,921.27x = 50,189,973.95
  5. Step 5: Solve for x
    x = 50,189,973.95/7,921.27
  6. Step 6: Final answer
    x = 6,336.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.