Home / 15,143.88-22,688.94-12,930.24

Finding the Fourth Proportional to 15,143.88, 22,688.94 and 12,930.24

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Solution

The fourth proportional to 15,143.88, 22,688.94 and 12,930.24 is: 19,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.88 : 22,688.94 = 12,930.24 : x
  2. Step 2: Convert to fraction form
    15,143.88/22,688.94 = 12,930.24/x
  3. Step 3: Cross multiply
    15,143.88x = 22,688.94 × 12,930.24
  4. Step 4: Simplify right side
    15,143.88x = 293,373,439.55
  5. Step 5: Solve for x
    x = 293,373,439.55/15,143.88
  6. Step 6: Final answer
    x = 19,372.41

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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.