Home / 12,961,876.59-17,887,901.31-7,455,242.64

Finding the Fourth Proportional to 12,961,876.59, 17,887,901.31 and 7,455,242.64

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Solution

The fourth proportional to 12,961,876.59, 17,887,901.31 and 7,455,242.64 is: 10,288,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,876.59 : 17,887,901.31 = 7,455,242.64 : x
  2. Step 2: Convert to fraction form
    12,961,876.59/17,887,901.31 = 7,455,242.64/x
  3. Step 3: Cross multiply
    12,961,876.59x = 17,887,901.31 × 7,455,242.64
  4. Step 4: Simplify right side
    12,961,876.59x = 133,358,644,586,423.84
  5. Step 5: Solve for x
    x = 133,358,644,586,423.84/12,961,876.59
  6. Step 6: Final answer
    x = 10,288,529.11

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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.