Home / 12,961,890.12-17,887,919.94-7,455,256.14

Finding the Fourth Proportional to 12,961,890.12, 17,887,919.94 and 7,455,256.14

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Solution

The fourth proportional to 12,961,890.12, 17,887,919.94 and 7,455,256.14 is: 10,288,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,890.12 : 17,887,919.94 = 7,455,256.14 : x
  2. Step 2: Convert to fraction form
    12,961,890.12/17,887,919.94 = 7,455,256.14/x
  3. Step 3: Cross multiply
    12,961,890.12x = 17,887,919.94 × 7,455,256.14
  4. Step 4: Simplify right side
    12,961,890.12x = 133,359,024,964,513.44
  5. Step 5: Solve for x
    x = 133,359,024,964,513.44/12,961,890.12
  6. Step 6: Final answer
    x = 10,288,547.71

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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.