Home / 13,349.13-18,418.47-7,605.37

Finding the Fourth Proportional to 13,349.13, 18,418.47 and 7,605.37

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Solution

The fourth proportional to 13,349.13, 18,418.47 and 7,605.37 is: 10,493.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.13 : 18,418.47 = 7,605.37 : x
  2. Step 2: Convert to fraction form
    13,349.13/18,418.47 = 7,605.37/x
  3. Step 3: Cross multiply
    13,349.13x = 18,418.47 × 7,605.37
  4. Step 4: Simplify right side
    13,349.13x = 140,079,279.18
  5. Step 5: Solve for x
    x = 140,079,279.18/13,349.13
  6. Step 6: Final answer
    x = 10,493.51

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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.