Home / 18,998.80-28,501.27-5,851.17

Finding the Fourth Proportional to 18,998.80, 28,501.27 and 5,851.17

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Solution

The fourth proportional to 18,998.80, 28,501.27 and 5,851.17 is: 8,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.80 : 28,501.27 = 5,851.17 : x
  2. Step 2: Convert to fraction form
    18,998.80/28,501.27 = 5,851.17/x
  3. Step 3: Cross multiply
    18,998.80x = 28,501.27 × 5,851.17
  4. Step 4: Simplify right side
    18,998.80x = 166,765,761.36
  5. Step 5: Solve for x
    x = 166,765,761.36/18,998.80
  6. Step 6: Final answer
    x = 8,777.70

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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.