Home / 13,326.93-18,391.19-7,358.85

Finding the Fourth Proportional to 13,326.93, 18,391.19 and 7,358.85

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Solution

The fourth proportional to 13,326.93, 18,391.19 and 7,358.85 is: 10,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.93 : 18,391.19 = 7,358.85 : x
  2. Step 2: Convert to fraction form
    13,326.93/18,391.19 = 7,358.85/x
  3. Step 3: Cross multiply
    13,326.93x = 18,391.19 × 7,358.85
  4. Step 4: Simplify right side
    13,326.93x = 135,337,971.74
  5. Step 5: Solve for x
    x = 135,337,971.74/13,326.93
  6. Step 6: Final answer
    x = 10,155.22

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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.