Home / 12,181.69-18,265.01-4,782.79

Finding the Fourth Proportional to 12,181.69, 18,265.01 and 4,782.79

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Solution

The fourth proportional to 12,181.69, 18,265.01 and 4,782.79 is: 7,171.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.69 : 18,265.01 = 4,782.79 : x
  2. Step 2: Convert to fraction form
    12,181.69/18,265.01 = 4,782.79/x
  3. Step 3: Cross multiply
    12,181.69x = 18,265.01 × 4,782.79
  4. Step 4: Simplify right side
    12,181.69x = 87,357,793.61
  5. Step 5: Solve for x
    x = 87,357,793.61/12,181.69
  6. Step 6: Final answer
    x = 7,171.24

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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.