Home / 11,847.79-17,772.90-4,054.78

Finding the Fourth Proportional to 11,847.79, 17,772.90 and 4,054.78

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Solution

The fourth proportional to 11,847.79, 17,772.90 and 4,054.78 is: 6,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,847.79 : 17,772.90 = 4,054.78 : x
  2. Step 2: Convert to fraction form
    11,847.79/17,772.90 = 4,054.78/x
  3. Step 3: Cross multiply
    11,847.79x = 17,772.90 × 4,054.78
  4. Step 4: Simplify right side
    11,847.79x = 72,065,199.46
  5. Step 5: Solve for x
    x = 72,065,199.46/11,847.79
  6. Step 6: Final answer
    x = 6,082.59

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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.