Home / 13,578.84-20,370.66-4,818.84

Finding the Fourth Proportional to 13,578.84, 20,370.66 and 4,818.84

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Solution

The fourth proportional to 13,578.84, 20,370.66 and 4,818.84 is: 7,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.84 : 20,370.66 = 4,818.84 : x
  2. Step 2: Convert to fraction form
    13,578.84/20,370.66 = 4,818.84/x
  3. Step 3: Cross multiply
    13,578.84x = 20,370.66 × 4,818.84
  4. Step 4: Simplify right side
    13,578.84x = 98,162,951.23
  5. Step 5: Solve for x
    x = 98,162,951.23/13,578.84
  6. Step 6: Final answer
    x = 7,229.11

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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.