Home / 14,679.96-21,891.15-13,086.60

Finding the Fourth Proportional to 14,679.96, 21,891.15 and 13,086.60

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Solution

The fourth proportional to 14,679.96, 21,891.15 and 13,086.60 is: 19,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.96 : 21,891.15 = 13,086.60 : x
  2. Step 2: Convert to fraction form
    14,679.96/21,891.15 = 13,086.60/x
  3. Step 3: Cross multiply
    14,679.96x = 21,891.15 × 13,086.60
  4. Step 4: Simplify right side
    14,679.96x = 286,480,723.59
  5. Step 5: Solve for x
    x = 286,480,723.59/14,679.96
  6. Step 6: Final answer
    x = 19,515.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.