Home / 13,621,215.88-18,797,404.08-7,509,863.08

Finding the Fourth Proportional to 13,621,215.88, 18,797,404.08 and 7,509,863.08

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Solution

The fourth proportional to 13,621,215.88, 18,797,404.08 and 7,509,863.08 is: 10,363,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,215.88 : 18,797,404.08 = 7,509,863.08 : x
  2. Step 2: Convert to fraction form
    13,621,215.88/18,797,404.08 = 7,509,863.08/x
  3. Step 3: Cross multiply
    13,621,215.88x = 18,797,404.08 × 7,509,863.08
  4. Step 4: Simplify right side
    13,621,215.88x = 141,165,930,900,233.34
  5. Step 5: Solve for x
    x = 141,165,930,900,233.34/13,621,215.88
  6. Step 6: Final answer
    x = 10,363,680.61

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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.