Home / 13,372.77-18,455.05-8,067.47

Finding the Fourth Proportional to 13,372.77, 18,455.05 and 8,067.47

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Solution

The fourth proportional to 13,372.77, 18,455.05 and 8,067.47 is: 11,133.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.77 : 18,455.05 = 8,067.47 : x
  2. Step 2: Convert to fraction form
    13,372.77/18,455.05 = 8,067.47/x
  3. Step 3: Cross multiply
    13,372.77x = 18,455.05 × 8,067.47
  4. Step 4: Simplify right side
    13,372.77x = 148,885,549.24
  5. Step 5: Solve for x
    x = 148,885,549.24/13,372.77
  6. Step 6: Final answer
    x = 11,133.49

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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.