Home / 13,716.56-18,883.08-13,089.68

Finding the Fourth Proportional to 13,716.56, 18,883.08 and 13,089.68

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Solution

The fourth proportional to 13,716.56, 18,883.08 and 13,089.68 is: 18,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.56 : 18,883.08 = 13,089.68 : x
  2. Step 2: Convert to fraction form
    13,716.56/18,883.08 = 13,089.68/x
  3. Step 3: Cross multiply
    13,716.56x = 18,883.08 × 13,089.68
  4. Step 4: Simplify right side
    13,716.56x = 247,173,474.61
  5. Step 5: Solve for x
    x = 247,173,474.61/13,716.56
  6. Step 6: Final answer
    x = 18,020.08

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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.