Home / 13,325.76-19,977.84-5,540.40

Finding the Fourth Proportional to 13,325.76, 19,977.84 and 5,540.40

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Solution

The fourth proportional to 13,325.76, 19,977.84 and 5,540.40 is: 8,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.76 : 19,977.84 = 5,540.40 : x
  2. Step 2: Convert to fraction form
    13,325.76/19,977.84 = 5,540.40/x
  3. Step 3: Cross multiply
    13,325.76x = 19,977.84 × 5,540.40
  4. Step 4: Simplify right side
    13,325.76x = 110,685,224.74
  5. Step 5: Solve for x
    x = 110,685,224.74/13,325.76
  6. Step 6: Final answer
    x = 8,306.11

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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.