Home / 11,639.12-17,461.40-3,847.93

Finding the Fourth Proportional to 11,639.12, 17,461.40 and 3,847.93

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Solution

The fourth proportional to 11,639.12, 17,461.40 and 3,847.93 is: 5,772.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.12 : 17,461.40 = 3,847.93 : x
  2. Step 2: Convert to fraction form
    11,639.12/17,461.40 = 3,847.93/x
  3. Step 3: Cross multiply
    11,639.12x = 17,461.40 × 3,847.93
  4. Step 4: Simplify right side
    11,639.12x = 67,190,182.01
  5. Step 5: Solve for x
    x = 67,190,182.01/11,639.12
  6. Step 6: Final answer
    x = 5,772.79

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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.