Home / 13,103.46-18,083.14-7,135.22

Finding the Fourth Proportional to 13,103.46, 18,083.14 and 7,135.22

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Solution

The fourth proportional to 13,103.46, 18,083.14 and 7,135.22 is: 9,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103.46 : 18,083.14 = 7,135.22 : x
  2. Step 2: Convert to fraction form
    13,103.46/18,083.14 = 7,135.22/x
  3. Step 3: Cross multiply
    13,103.46x = 18,083.14 × 7,135.22
  4. Step 4: Simplify right side
    13,103.46x = 129,027,182.19
  5. Step 5: Solve for x
    x = 129,027,182.19/13,103.46
  6. Step 6: Final answer
    x = 9,846.80

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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.