Home / 11,345.97-17,018.85-4,420.47

Finding the Fourth Proportional to 11,345.97, 17,018.85 and 4,420.47

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Solution

The fourth proportional to 11,345.97, 17,018.85 and 4,420.47 is: 6,630.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.97 : 17,018.85 = 4,420.47 : x
  2. Step 2: Convert to fraction form
    11,345.97/17,018.85 = 4,420.47/x
  3. Step 3: Cross multiply
    11,345.97x = 17,018.85 × 4,420.47
  4. Step 4: Simplify right side
    11,345.97x = 75,231,315.86
  5. Step 5: Solve for x
    x = 75,231,315.86/11,345.97
  6. Step 6: Final answer
    x = 6,630.66

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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.