Home / 11,308.14-15,607.11-7,768.44

Finding the Fourth Proportional to 11,308.14, 15,607.11 and 7,768.44

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Solution

The fourth proportional to 11,308.14, 15,607.11 and 7,768.44 is: 10,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.14 : 15,607.11 = 7,768.44 : x
  2. Step 2: Convert to fraction form
    11,308.14/15,607.11 = 7,768.44/x
  3. Step 3: Cross multiply
    11,308.14x = 15,607.11 × 7,768.44
  4. Step 4: Simplify right side
    11,308.14x = 121,242,897.61
  5. Step 5: Solve for x
    x = 121,242,897.61/11,308.14
  6. Step 6: Final answer
    x = 10,721.74

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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.