Home / 13,109.10-19,666.88-4,344.90

Finding the Fourth Proportional to 13,109.10, 19,666.88 and 4,344.90

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Solution

The fourth proportional to 13,109.10, 19,666.88 and 4,344.90 is: 6,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.10 : 19,666.88 = 4,344.90 : x
  2. Step 2: Convert to fraction form
    13,109.10/19,666.88 = 4,344.90/x
  3. Step 3: Cross multiply
    13,109.10x = 19,666.88 × 4,344.90
  4. Step 4: Simplify right side
    13,109.10x = 85,450,626.91
  5. Step 5: Solve for x
    x = 85,450,626.91/13,109.10
  6. Step 6: Final answer
    x = 6,518.42

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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.