Home / 13,442.31-18,544.41-8,725.68

Finding the Fourth Proportional to 13,442.31, 18,544.41 and 8,725.68

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Solution

The fourth proportional to 13,442.31, 18,544.41 and 8,725.68 is: 12,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.31 : 18,544.41 = 8,725.68 : x
  2. Step 2: Convert to fraction form
    13,442.31/18,544.41 = 8,725.68/x
  3. Step 3: Cross multiply
    13,442.31x = 18,544.41 × 8,725.68
  4. Step 4: Simplify right side
    13,442.31x = 161,812,587.45
  5. Step 5: Solve for x
    x = 161,812,587.45/13,442.31
  6. Step 6: Final answer
    x = 12,037.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.