Home / 12,386.76-17,094.62-7,081.44

Finding the Fourth Proportional to 12,386.76, 17,094.62 and 7,081.44

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Solution

The fourth proportional to 12,386.76, 17,094.62 and 7,081.44 is: 9,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.76 : 17,094.62 = 7,081.44 : x
  2. Step 2: Convert to fraction form
    12,386.76/17,094.62 = 7,081.44/x
  3. Step 3: Cross multiply
    12,386.76x = 17,094.62 × 7,081.44
  4. Step 4: Simplify right side
    12,386.76x = 121,054,525.85
  5. Step 5: Solve for x
    x = 121,054,525.85/12,386.76
  6. Step 6: Final answer
    x = 9,772.90

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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.