Home / 10,407.15-15,611.54-3,011.72

Finding the Fourth Proportional to 10,407.15, 15,611.54 and 3,011.72

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Solution

The fourth proportional to 10,407.15, 15,611.54 and 3,011.72 is: 4,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.15 : 15,611.54 = 3,011.72 : x
  2. Step 2: Convert to fraction form
    10,407.15/15,611.54 = 3,011.72/x
  3. Step 3: Cross multiply
    10,407.15x = 15,611.54 × 3,011.72
  4. Step 4: Simplify right side
    10,407.15x = 47,017,494.13
  5. Step 5: Solve for x
    x = 47,017,494.13/10,407.15
  6. Step 6: Final answer
    x = 4,517.81

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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.