Home / 13,267.13-18,311.25-7,605.68

Finding the Fourth Proportional to 13,267.13, 18,311.25 and 7,605.68

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Solution

The fourth proportional to 13,267.13, 18,311.25 and 7,605.68 is: 10,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,267.13 : 18,311.25 = 7,605.68 : x
  2. Step 2: Convert to fraction form
    13,267.13/18,311.25 = 7,605.68/x
  3. Step 3: Cross multiply
    13,267.13x = 18,311.25 × 7,605.68
  4. Step 4: Simplify right side
    13,267.13x = 139,269,459.92
  5. Step 5: Solve for x
    x = 139,269,459.92/13,267.13
  6. Step 6: Final answer
    x = 10,497.33

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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.