Home / 15,707.14-21,676.05-8,633.50

Finding the Fourth Proportional to 15,707.14, 21,676.05 and 8,633.50

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Solution

The fourth proportional to 15,707.14, 21,676.05 and 8,633.50 is: 11,914.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.14 : 21,676.05 = 8,633.50 : x
  2. Step 2: Convert to fraction form
    15,707.14/21,676.05 = 8,633.50/x
  3. Step 3: Cross multiply
    15,707.14x = 21,676.05 × 8,633.50
  4. Step 4: Simplify right side
    15,707.14x = 187,140,177.68
  5. Step 5: Solve for x
    x = 187,140,177.68/15,707.14
  6. Step 6: Final answer
    x = 11,914.34

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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.