Home / 18,818.85-28,228.33-6,347.64

Finding the Fourth Proportional to 18,818.85, 28,228.33 and 6,347.64

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Solution

The fourth proportional to 18,818.85, 28,228.33 and 6,347.64 is: 9,521.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.85 : 28,228.33 = 6,347.64 : x
  2. Step 2: Convert to fraction form
    18,818.85/28,228.33 = 6,347.64/x
  3. Step 3: Cross multiply
    18,818.85x = 28,228.33 × 6,347.64
  4. Step 4: Simplify right side
    18,818.85x = 179,183,260.77
  5. Step 5: Solve for x
    x = 179,183,260.77/18,818.85
  6. Step 6: Final answer
    x = 9,521.48

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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.