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Finding the Fourth Proportional to 9,093.77, 13,560.34 and 7,987.71

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Solution

The fourth proportional to 9,093.77, 13,560.34 and 7,987.71 is: 11,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,093.77 : 13,560.34 = 7,987.71 : x
  2. Step 2: Convert to fraction form
    9,093.77/13,560.34 = 7,987.71/x
  3. Step 3: Cross multiply
    9,093.77x = 13,560.34 × 7,987.71
  4. Step 4: Simplify right side
    9,093.77x = 108,316,137.36
  5. Step 5: Solve for x
    x = 108,316,137.36/9,093.77
  6. Step 6: Final answer
    x = 11,911.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.