Home / 13,430.26-20,154.13-5,110.35

Finding the Fourth Proportional to 13,430.26, 20,154.13 and 5,110.35

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Solution

The fourth proportional to 13,430.26, 20,154.13 and 5,110.35 is: 7,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.26 : 20,154.13 = 5,110.35 : x
  2. Step 2: Convert to fraction form
    13,430.26/20,154.13 = 5,110.35/x
  3. Step 3: Cross multiply
    13,430.26x = 20,154.13 × 5,110.35
  4. Step 4: Simplify right side
    13,430.26x = 102,994,658.25
  5. Step 5: Solve for x
    x = 102,994,658.25/13,430.26
  6. Step 6: Final answer
    x = 7,668.85

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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.