Home / 12,355.96-17,037.66-9,517.18

Finding the Fourth Proportional to 12,355.96, 17,037.66 and 9,517.18

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Solution

The fourth proportional to 12,355.96, 17,037.66 and 9,517.18 is: 13,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.96 : 17,037.66 = 9,517.18 : x
  2. Step 2: Convert to fraction form
    12,355.96/17,037.66 = 9,517.18/x
  3. Step 3: Cross multiply
    12,355.96x = 17,037.66 × 9,517.18
  4. Step 4: Simplify right side
    12,355.96x = 162,150,477.00
  5. Step 5: Solve for x
    x = 162,150,477.00/12,355.96
  6. Step 6: Final answer
    x = 13,123.26

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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.