Home / 13,168.08-18,171.97-7,502.58

Finding the Fourth Proportional to 13,168.08, 18,171.97 and 7,502.58

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Solution

The fourth proportional to 13,168.08, 18,171.97 and 7,502.58 is: 10,353.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.08 : 18,171.97 = 7,502.58 : x
  2. Step 2: Convert to fraction form
    13,168.08/18,171.97 = 7,502.58/x
  3. Step 3: Cross multiply
    13,168.08x = 18,171.97 × 7,502.58
  4. Step 4: Simplify right side
    13,168.08x = 136,336,639.93
  5. Step 5: Solve for x
    x = 136,336,639.93/13,168.08
  6. Step 6: Final answer
    x = 10,353.57

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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.