Home / 12,924.39-17,840.15-7,618.89

Finding the Fourth Proportional to 12,924.39, 17,840.15 and 7,618.89

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Solution

The fourth proportional to 12,924.39, 17,840.15 and 7,618.89 is: 10,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924.39 : 17,840.15 = 7,618.89 : x
  2. Step 2: Convert to fraction form
    12,924.39/17,840.15 = 7,618.89/x
  3. Step 3: Cross multiply
    12,924.39x = 17,840.15 × 7,618.89
  4. Step 4: Simplify right side
    12,924.39x = 135,922,140.43
  5. Step 5: Solve for x
    x = 135,922,140.43/12,924.39
  6. Step 6: Final answer
    x = 10,516.72

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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.