Home / 13,998.09-19,318.46-7,711.59

Finding the Fourth Proportional to 13,998.09, 19,318.46 and 7,711.59

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Solution

The fourth proportional to 13,998.09, 19,318.46 and 7,711.59 is: 10,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.09 : 19,318.46 = 7,711.59 : x
  2. Step 2: Convert to fraction form
    13,998.09/19,318.46 = 7,711.59/x
  3. Step 3: Cross multiply
    13,998.09x = 19,318.46 × 7,711.59
  4. Step 4: Simplify right side
    13,998.09x = 148,976,004.39
  5. Step 5: Solve for x
    x = 148,976,004.39/13,998.09
  6. Step 6: Final answer
    x = 10,642.60

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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.