Home / 13,369.58-18,449.60-7,704.17

Finding the Fourth Proportional to 13,369.58, 18,449.60 and 7,704.17

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Solution

The fourth proportional to 13,369.58, 18,449.60 and 7,704.17 is: 10,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.58 : 18,449.60 = 7,704.17 : x
  2. Step 2: Convert to fraction form
    13,369.58/18,449.60 = 7,704.17/x
  3. Step 3: Cross multiply
    13,369.58x = 18,449.60 × 7,704.17
  4. Step 4: Simplify right side
    13,369.58x = 142,138,854.83
  5. Step 5: Solve for x
    x = 142,138,854.83/13,369.58
  6. Step 6: Final answer
    x = 10,631.51

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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.