Home / 11,439.89-17,154.20-4,774.37

Finding the Fourth Proportional to 11,439.89, 17,154.20 and 4,774.37

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Solution

The fourth proportional to 11,439.89, 17,154.20 and 4,774.37 is: 7,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.89 : 17,154.20 = 4,774.37 : x
  2. Step 2: Convert to fraction form
    11,439.89/17,154.20 = 4,774.37/x
  3. Step 3: Cross multiply
    11,439.89x = 17,154.20 × 4,774.37
  4. Step 4: Simplify right side
    11,439.89x = 81,900,497.85
  5. Step 5: Solve for x
    x = 81,900,497.85/11,439.89
  6. Step 6: Final answer
    x = 7,159.20

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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.