Home / 15,708.25-21,676.87-8,634.22

Finding the Fourth Proportional to 15,708.25, 21,676.87 and 8,634.22

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Solution

The fourth proportional to 15,708.25, 21,676.87 and 8,634.22 is: 11,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,708.25 : 21,676.87 = 8,634.22 : x
  2. Step 2: Convert to fraction form
    15,708.25/21,676.87 = 8,634.22/x
  3. Step 3: Cross multiply
    15,708.25x = 21,676.87 × 8,634.22
  4. Step 4: Simplify right side
    15,708.25x = 187,162,788.71
  5. Step 5: Solve for x
    x = 187,162,788.71/15,708.25
  6. Step 6: Final answer
    x = 11,914.94

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1.5x scale

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.