Home / 18,739.27-28,100.67-9,972.10

Finding the Fourth Proportional to 18,739.27, 28,100.67 and 9,972.10

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Solution

The fourth proportional to 18,739.27, 28,100.67 and 9,972.10 is: 14,953.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.27 : 28,100.67 = 9,972.10 : x
  2. Step 2: Convert to fraction form
    18,739.27/28,100.67 = 9,972.10/x
  3. Step 3: Cross multiply
    18,739.27x = 28,100.67 × 9,972.10
  4. Step 4: Simplify right side
    18,739.27x = 280,222,691.31
  5. Step 5: Solve for x
    x = 280,222,691.31/18,739.27
  6. Step 6: Final answer
    x = 14,953.77

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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.