Home / 15,555.05-23,313.13-12,255.11

Finding the Fourth Proportional to 15,555.05, 23,313.13 and 12,255.11

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Solution

The fourth proportional to 15,555.05, 23,313.13 and 12,255.11 is: 18,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.05 : 23,313.13 = 12,255.11 : x
  2. Step 2: Convert to fraction form
    15,555.05/23,313.13 = 12,255.11/x
  3. Step 3: Cross multiply
    15,555.05x = 23,313.13 × 12,255.11
  4. Step 4: Simplify right side
    15,555.05x = 285,704,972.59
  5. Step 5: Solve for x
    x = 285,704,972.59/15,555.05
  6. Step 6: Final answer
    x = 18,367.35

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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.