Home / 15,707.40-21,676.06-8,633.94

Finding the Fourth Proportional to 15,707.40, 21,676.06 and 8,633.94

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Solution

The fourth proportional to 15,707.40, 21,676.06 and 8,633.94 is: 11,914.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.40 : 21,676.06 = 8,633.94 : x
  2. Step 2: Convert to fraction form
    15,707.40/21,676.06 = 8,633.94/x
  3. Step 3: Cross multiply
    15,707.40x = 21,676.06 × 8,633.94
  4. Step 4: Simplify right side
    15,707.40x = 187,149,801.48
  5. Step 5: Solve for x
    x = 187,149,801.48/15,707.40
  6. Step 6: Final answer
    x = 11,914.75

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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.