Home / 11,351.79-15,665.85-6,247.52

Finding the Fourth Proportional to 11,351.79, 15,665.85 and 6,247.52

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Solution

The fourth proportional to 11,351.79, 15,665.85 and 6,247.52 is: 8,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.79 : 15,665.85 = 6,247.52 : x
  2. Step 2: Convert to fraction form
    11,351.79/15,665.85 = 6,247.52/x
  3. Step 3: Cross multiply
    11,351.79x = 15,665.85 × 6,247.52
  4. Step 4: Simplify right side
    11,351.79x = 97,872,632.86
  5. Step 5: Solve for x
    x = 97,872,632.86/11,351.79
  6. Step 6: Final answer
    x = 8,621.78

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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.