Home / 13,601.52-18,774.78-8,574.21

Finding the Fourth Proportional to 13,601.52, 18,774.78 and 8,574.21

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Solution

The fourth proportional to 13,601.52, 18,774.78 and 8,574.21 is: 11,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.52 : 18,774.78 = 8,574.21 : x
  2. Step 2: Convert to fraction form
    13,601.52/18,774.78 = 8,574.21/x
  3. Step 3: Cross multiply
    13,601.52x = 18,774.78 × 8,574.21
  4. Step 4: Simplify right side
    13,601.52x = 160,978,906.42
  5. Step 5: Solve for x
    x = 160,978,906.42/13,601.52
  6. Step 6: Final answer
    x = 11,835.36

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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.