Home / 13,601.07-18,768.22-7,631.64

Finding the Fourth Proportional to 13,601.07, 18,768.22 and 7,631.64

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Solution

The fourth proportional to 13,601.07, 18,768.22 and 7,631.64 is: 10,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.07 : 18,768.22 = 7,631.64 : x
  2. Step 2: Convert to fraction form
    13,601.07/18,768.22 = 7,631.64/x
  3. Step 3: Cross multiply
    13,601.07x = 18,768.22 × 7,631.64
  4. Step 4: Simplify right side
    13,601.07x = 143,232,298.48
  5. Step 5: Solve for x
    x = 143,232,298.48/13,601.07
  6. Step 6: Final answer
    x = 10,530.96

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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.