Home / 13,187.18-18,197.37-7,522.16

Finding the Fourth Proportional to 13,187.18, 18,197.37 and 7,522.16

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Solution

The fourth proportional to 13,187.18, 18,197.37 and 7,522.16 is: 10,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.18 : 18,197.37 = 7,522.16 : x
  2. Step 2: Convert to fraction form
    13,187.18/18,197.37 = 7,522.16/x
  3. Step 3: Cross multiply
    13,187.18x = 18,197.37 × 7,522.16
  4. Step 4: Simplify right side
    13,187.18x = 136,883,437.73
  5. Step 5: Solve for x
    x = 136,883,437.73/13,187.18
  6. Step 6: Final answer
    x = 10,380.04

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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.