Home / 13,109.46-19,660.76-8,948.70

Finding the Fourth Proportional to 13,109.46, 19,660.76 and 8,948.70

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Solution

The fourth proportional to 13,109.46, 19,660.76 and 8,948.70 is: 13,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.46 : 19,660.76 = 8,948.70 : x
  2. Step 2: Convert to fraction form
    13,109.46/19,660.76 = 8,948.70/x
  3. Step 3: Cross multiply
    13,109.46x = 19,660.76 × 8,948.70
  4. Step 4: Simplify right side
    13,109.46x = 175,938,198.27
  5. Step 5: Solve for x
    x = 175,938,198.27/13,109.46
  6. Step 6: Final answer
    x = 13,420.71

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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.