Home / 13,174.21-18,180.75-7,206.13

Finding the Fourth Proportional to 13,174.21, 18,180.75 and 7,206.13

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Solution

The fourth proportional to 13,174.21, 18,180.75 and 7,206.13 is: 9,944.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.21 : 18,180.75 = 7,206.13 : x
  2. Step 2: Convert to fraction form
    13,174.21/18,180.75 = 7,206.13/x
  3. Step 3: Cross multiply
    13,174.21x = 18,180.75 × 7,206.13
  4. Step 4: Simplify right side
    13,174.21x = 131,012,848.00
  5. Step 5: Solve for x
    x = 131,012,848.00/13,174.21
  6. Step 6: Final answer
    x = 9,944.65

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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.