Home / 12,145.29-18,217.93-4,744.56

Finding the Fourth Proportional to 12,145.29, 18,217.93 and 4,744.56

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Solution

The fourth proportional to 12,145.29, 18,217.93 and 4,744.56 is: 7,116.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.29 : 18,217.93 = 4,744.56 : x
  2. Step 2: Convert to fraction form
    12,145.29/18,217.93 = 4,744.56/x
  3. Step 3: Cross multiply
    12,145.29x = 18,217.93 × 4,744.56
  4. Step 4: Simplify right side
    12,145.29x = 86,436,061.96
  5. Step 5: Solve for x
    x = 86,436,061.96/12,145.29
  6. Step 6: Final answer
    x = 7,116.84

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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.