Home / 18,139.15-27,183.39-9,801.19

Finding the Fourth Proportional to 18,139.15, 27,183.39 and 9,801.19

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Solution

The fourth proportional to 18,139.15, 27,183.39 and 9,801.19 is: 14,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.15 : 27,183.39 = 9,801.19 : x
  2. Step 2: Convert to fraction form
    18,139.15/27,183.39 = 9,801.19/x
  3. Step 3: Cross multiply
    18,139.15x = 27,183.39 × 9,801.19
  4. Step 4: Simplify right side
    18,139.15x = 266,429,570.23
  5. Step 5: Solve for x
    x = 266,429,570.23/18,139.15
  6. Step 6: Final answer
    x = 14,688.10

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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.