Home / 12,961,891.12-17,887,921.32-7,455,257.14

Finding the Fourth Proportional to 12,961,891.12, 17,887,921.32 and 7,455,257.14

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Solution

The fourth proportional to 12,961,891.12, 17,887,921.32 and 7,455,257.14 is: 10,288,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,891.12 : 17,887,921.32 = 7,455,257.14 : x
  2. Step 2: Convert to fraction form
    12,961,891.12/17,887,921.32 = 7,455,257.14/x
  3. Step 3: Cross multiply
    12,961,891.12x = 17,887,921.32 × 7,455,257.14
  4. Step 4: Simplify right side
    12,961,891.12x = 133,359,053,140,688.22
  5. Step 5: Solve for x
    x = 133,359,053,140,688.22/12,961,891.12
  6. Step 6: Final answer
    x = 10,288,549.09

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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.