Home / 12,511.86-17,258.79-8,262.93

Finding the Fourth Proportional to 12,511.86, 17,258.79 and 8,262.93

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Solution

The fourth proportional to 12,511.86, 17,258.79 and 8,262.93 is: 11,397.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.86 : 17,258.79 = 8,262.93 : x
  2. Step 2: Convert to fraction form
    12,511.86/17,258.79 = 8,262.93/x
  3. Step 3: Cross multiply
    12,511.86x = 17,258.79 × 8,262.93
  4. Step 4: Simplify right side
    12,511.86x = 142,608,173.65
  5. Step 5: Solve for x
    x = 142,608,173.65/12,511.86
  6. Step 6: Final answer
    x = 11,397.84

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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.