Home / 13,363.76-20,034.84-5,578.40

Finding the Fourth Proportional to 13,363.76, 20,034.84 and 5,578.40

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Solution

The fourth proportional to 13,363.76, 20,034.84 and 5,578.40 is: 8,363.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.76 : 20,034.84 = 5,578.40 : x
  2. Step 2: Convert to fraction form
    13,363.76/20,034.84 = 5,578.40/x
  3. Step 3: Cross multiply
    13,363.76x = 20,034.84 × 5,578.40
  4. Step 4: Simplify right side
    13,363.76x = 111,762,351.46
  5. Step 5: Solve for x
    x = 111,762,351.46/13,363.76
  6. Step 6: Final answer
    x = 8,363.09

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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.