Home / 10,611.56-15,917.50-3,686.28

Finding the Fourth Proportional to 10,611.56, 15,917.50 and 3,686.28

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Solution

The fourth proportional to 10,611.56, 15,917.50 and 3,686.28 is: 5,529.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.56 : 15,917.50 = 3,686.28 : x
  2. Step 2: Convert to fraction form
    10,611.56/15,917.50 = 3,686.28/x
  3. Step 3: Cross multiply
    10,611.56x = 15,917.50 × 3,686.28
  4. Step 4: Simplify right side
    10,611.56x = 58,676,361.90
  5. Step 5: Solve for x
    x = 58,676,361.90/10,611.56
  6. Step 6: Final answer
    x = 5,529.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.