Home / 11,715.39-17,577.18-7,327.71

Finding the Fourth Proportional to 11,715.39, 17,577.18 and 7,327.71

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Solution

The fourth proportional to 11,715.39, 17,577.18 and 7,327.71 is: 10,994.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,715.39 : 17,577.18 = 7,327.71 : x
  2. Step 2: Convert to fraction form
    11,715.39/17,577.18 = 7,327.71/x
  3. Step 3: Cross multiply
    11,715.39x = 17,577.18 × 7,327.71
  4. Step 4: Simplify right side
    11,715.39x = 128,800,477.66
  5. Step 5: Solve for x
    x = 128,800,477.66/11,715.39
  6. Step 6: Final answer
    x = 10,994.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.