Home / 13,103.93-18,083.75-7,135.92

Finding the Fourth Proportional to 13,103.93, 18,083.75 and 7,135.92

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Solution

The fourth proportional to 13,103.93, 18,083.75 and 7,135.92 is: 9,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.93 : 18,083.75 = 7,135.92 : x
  2. Step 2: Convert to fraction form
    13,103.93/18,083.75 = 7,135.92/x
  3. Step 3: Cross multiply
    13,103.93x = 18,083.75 × 7,135.92
  4. Step 4: Simplify right side
    13,103.93x = 129,044,157.62
  5. Step 5: Solve for x
    x = 129,044,157.62/13,103.93
  6. Step 6: Final answer
    x = 9,847.74

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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.