Home / 11,113.56-16,520.30-10,781.88

Finding the Fourth Proportional to 11,113.56, 16,520.30 and 10,781.88

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Solution

The fourth proportional to 11,113.56, 16,520.30 and 10,781.88 is: 16,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.56 : 16,520.30 = 10,781.88 : x
  2. Step 2: Convert to fraction form
    11,113.56/16,520.30 = 10,781.88/x
  3. Step 3: Cross multiply
    11,113.56x = 16,520.30 × 10,781.88
  4. Step 4: Simplify right side
    11,113.56x = 178,119,838.25
  5. Step 5: Solve for x
    x = 178,119,838.25/11,113.56
  6. Step 6: Final answer
    x = 16,027.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.