Home / 13,494.39-20,235.71-7,167.89

Finding the Fourth Proportional to 13,494.39, 20,235.71 and 7,167.89

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Solution

The fourth proportional to 13,494.39, 20,235.71 and 7,167.89 is: 10,748.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494.39 : 20,235.71 = 7,167.89 : x
  2. Step 2: Convert to fraction form
    13,494.39/20,235.71 = 7,167.89/x
  3. Step 3: Cross multiply
    13,494.39x = 20,235.71 × 7,167.89
  4. Step 4: Simplify right side
    13,494.39x = 145,047,240.71
  5. Step 5: Solve for x
    x = 145,047,240.71/13,494.39
  6. Step 6: Final answer
    x = 10,748.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.