Home / 11,238.52-16,854.18-4,661.20

Finding the Fourth Proportional to 11,238.52, 16,854.18 and 4,661.20

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Solution

The fourth proportional to 11,238.52, 16,854.18 and 4,661.20 is: 6,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.52 : 16,854.18 = 4,661.20 : x
  2. Step 2: Convert to fraction form
    11,238.52/16,854.18 = 4,661.20/x
  3. Step 3: Cross multiply
    11,238.52x = 16,854.18 × 4,661.20
  4. Step 4: Simplify right side
    11,238.52x = 78,560,703.82
  5. Step 5: Solve for x
    x = 78,560,703.82/11,238.52
  6. Step 6: Final answer
    x = 6,990.31

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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.