Home / 13,434.98-20,151.78-4,074.62

Finding the Fourth Proportional to 13,434.98, 20,151.78 and 4,074.62

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Solution

The fourth proportional to 13,434.98, 20,151.78 and 4,074.62 is: 6,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.98 : 20,151.78 = 4,074.62 : x
  2. Step 2: Convert to fraction form
    13,434.98/20,151.78 = 4,074.62/x
  3. Step 3: Cross multiply
    13,434.98x = 20,151.78 × 4,074.62
  4. Step 4: Simplify right side
    13,434.98x = 82,110,845.82
  5. Step 5: Solve for x
    x = 82,110,845.82/13,434.98
  6. Step 6: Final answer
    x = 6,111.72

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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.