Home / 18,693.28-28,056.08-10,891.36

Finding the Fourth Proportional to 18,693.28, 28,056.08 and 10,891.36

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Solution

The fourth proportional to 18,693.28, 28,056.08 and 10,891.36 is: 16,346.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.28 : 28,056.08 = 10,891.36 : x
  2. Step 2: Convert to fraction form
    18,693.28/28,056.08 = 10,891.36/x
  3. Step 3: Cross multiply
    18,693.28x = 28,056.08 × 10,891.36
  4. Step 4: Simplify right side
    18,693.28x = 305,568,867.47
  5. Step 5: Solve for x
    x = 305,568,867.47/18,693.28
  6. Step 6: Final answer
    x = 16,346.46

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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.