Home / 18,889.14-28,335.33-7,039.25

Finding the Fourth Proportional to 18,889.14, 28,335.33 and 7,039.25

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Solution

The fourth proportional to 18,889.14, 28,335.33 and 7,039.25 is: 10,559.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.14 : 28,335.33 = 7,039.25 : x
  2. Step 2: Convert to fraction form
    18,889.14/28,335.33 = 7,039.25/x
  3. Step 3: Cross multiply
    18,889.14x = 28,335.33 × 7,039.25
  4. Step 4: Simplify right side
    18,889.14x = 199,459,330.03
  5. Step 5: Solve for x
    x = 199,459,330.03/18,889.14
  6. Step 6: Final answer
    x = 10,559.47

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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.