Home / 13,477.24-18,601.14-8,171.20

Finding the Fourth Proportional to 13,477.24, 18,601.14 and 8,171.20

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Solution

The fourth proportional to 13,477.24, 18,601.14 and 8,171.20 is: 11,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.24 : 18,601.14 = 8,171.20 : x
  2. Step 2: Convert to fraction form
    13,477.24/18,601.14 = 8,171.20/x
  3. Step 3: Cross multiply
    13,477.24x = 18,601.14 × 8,171.20
  4. Step 4: Simplify right side
    13,477.24x = 151,993,635.17
  5. Step 5: Solve for x
    x = 151,993,635.17/13,477.24
  6. Step 6: Final answer
    x = 11,277.80

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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.