Home / 11,529.90-15,905.43-8,876.34

Finding the Fourth Proportional to 11,529.90, 15,905.43 and 8,876.34

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Solution

The fourth proportional to 11,529.90, 15,905.43 and 8,876.34 is: 12,244.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.90 : 15,905.43 = 8,876.34 : x
  2. Step 2: Convert to fraction form
    11,529.90/15,905.43 = 8,876.34/x
  3. Step 3: Cross multiply
    11,529.90x = 15,905.43 × 8,876.34
  4. Step 4: Simplify right side
    11,529.90x = 141,182,004.53
  5. Step 5: Solve for x
    x = 141,182,004.53/11,529.90
  6. Step 6: Final answer
    x = 12,244.86

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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.