Home / 13,337.84-20,007.78-3,977.15

Finding the Fourth Proportional to 13,337.84, 20,007.78 and 3,977.15

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Solution

The fourth proportional to 13,337.84, 20,007.78 and 3,977.15 is: 5,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.84 : 20,007.78 = 3,977.15 : x
  2. Step 2: Convert to fraction form
    13,337.84/20,007.78 = 3,977.15/x
  3. Step 3: Cross multiply
    13,337.84x = 20,007.78 × 3,977.15
  4. Step 4: Simplify right side
    13,337.84x = 79,573,842.19
  5. Step 5: Solve for x
    x = 79,573,842.19/13,337.84
  6. Step 6: Final answer
    x = 5,966.02

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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.