Home / 13,548.85-18,716.03-12,291.33

Finding the Fourth Proportional to 13,548.85, 18,716.03 and 12,291.33

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Solution

The fourth proportional to 13,548.85, 18,716.03 and 12,291.33 is: 16,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.85 : 18,716.03 = 12,291.33 : x
  2. Step 2: Convert to fraction form
    13,548.85/18,716.03 = 12,291.33/x
  3. Step 3: Cross multiply
    13,548.85x = 18,716.03 × 12,291.33
  4. Step 4: Simplify right side
    13,548.85x = 230,044,901.02
  5. Step 5: Solve for x
    x = 230,044,901.02/13,548.85
  6. Step 6: Final answer
    x = 16,978.92

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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.