Home / 18,716.07-28,069.96-5,386.11

Finding the Fourth Proportional to 18,716.07, 28,069.96 and 5,386.11

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Solution

The fourth proportional to 18,716.07, 28,069.96 and 5,386.11 is: 8,077.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.07 : 28,069.96 = 5,386.11 : x
  2. Step 2: Convert to fraction form
    18,716.07/28,069.96 = 5,386.11/x
  3. Step 3: Cross multiply
    18,716.07x = 28,069.96 × 5,386.11
  4. Step 4: Simplify right side
    18,716.07x = 151,187,892.26
  5. Step 5: Solve for x
    x = 151,187,892.26/18,716.07
  6. Step 6: Final answer
    x = 8,077.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.