Home / 18,761.01-28,142.79-6,280.53

Finding the Fourth Proportional to 18,761.01, 28,142.79 and 6,280.53

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Solution

The fourth proportional to 18,761.01, 28,142.79 and 6,280.53 is: 9,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,761.01 : 28,142.79 = 6,280.53 : x
  2. Step 2: Convert to fraction form
    18,761.01/28,142.79 = 6,280.53/x
  3. Step 3: Cross multiply
    18,761.01x = 28,142.79 × 6,280.53
  4. Step 4: Simplify right side
    18,761.01x = 176,751,636.88
  5. Step 5: Solve for x
    x = 176,751,636.88/18,761.01
  6. Step 6: Final answer
    x = 9,421.22

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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.