Home / 13,404.70-20,107.05-4,639.90

Finding the Fourth Proportional to 13,404.70, 20,107.05 and 4,639.90

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Solution

The fourth proportional to 13,404.70, 20,107.05 and 4,639.90 is: 6,959.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.70 : 20,107.05 = 4,639.90 : x
  2. Step 2: Convert to fraction form
    13,404.70/20,107.05 = 4,639.90/x
  3. Step 3: Cross multiply
    13,404.70x = 20,107.05 × 4,639.90
  4. Step 4: Simplify right side
    13,404.70x = 93,294,701.30
  5. Step 5: Solve for x
    x = 93,294,701.30/13,404.70
  6. Step 6: Final answer
    x = 6,959.85

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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.