Home / 13,266.57-18,310.49-7,605.12

Finding the Fourth Proportional to 13,266.57, 18,310.49 and 7,605.12

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Solution

The fourth proportional to 13,266.57, 18,310.49 and 7,605.12 is: 10,496.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.57 : 18,310.49 = 7,605.12 : x
  2. Step 2: Convert to fraction form
    13,266.57/18,310.49 = 7,605.12/x
  3. Step 3: Cross multiply
    13,266.57x = 18,310.49 × 7,605.12
  4. Step 4: Simplify right side
    13,266.57x = 139,253,435.68
  5. Step 5: Solve for x
    x = 139,253,435.68/13,266.57
  6. Step 6: Final answer
    x = 10,496.57

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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.