Home / 13,400.60-18,494.34-7,736.85

Finding the Fourth Proportional to 13,400.60, 18,494.34 and 7,736.85

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Solution

The fourth proportional to 13,400.60, 18,494.34 and 7,736.85 is: 10,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.60 : 18,494.34 = 7,736.85 : x
  2. Step 2: Convert to fraction form
    13,400.60/18,494.34 = 7,736.85/x
  3. Step 3: Cross multiply
    13,400.60x = 18,494.34 × 7,736.85
  4. Step 4: Simplify right side
    13,400.60x = 143,087,841.96
  5. Step 5: Solve for x
    x = 143,087,841.96/13,400.60
  6. Step 6: Final answer
    x = 10,677.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.