Home / 18,891.02-28,338.12-5,743.50

Finding the Fourth Proportional to 18,891.02, 28,338.12 and 5,743.50

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Solution

The fourth proportional to 18,891.02, 28,338.12 and 5,743.50 is: 8,615.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.02 : 28,338.12 = 5,743.50 : x
  2. Step 2: Convert to fraction form
    18,891.02/28,338.12 = 5,743.50/x
  3. Step 3: Cross multiply
    18,891.02x = 28,338.12 × 5,743.50
  4. Step 4: Simplify right side
    18,891.02x = 162,759,992.22
  5. Step 5: Solve for x
    x = 162,759,992.22/18,891.02
  6. Step 6: Final answer
    x = 8,615.74

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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.