Home / 18,140.11-27,210.87-4,993.51

Finding the Fourth Proportional to 18,140.11, 27,210.87 and 4,993.51

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Solution

The fourth proportional to 18,140.11, 27,210.87 and 4,993.51 is: 7,490.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,140.11 : 27,210.87 = 4,993.51 : x
  2. Step 2: Convert to fraction form
    18,140.11/27,210.87 = 4,993.51/x
  3. Step 3: Cross multiply
    18,140.11x = 27,210.87 × 4,993.51
  4. Step 4: Simplify right side
    18,140.11x = 135,877,751.45
  5. Step 5: Solve for x
    x = 135,877,751.45/18,140.11
  6. Step 6: Final answer
    x = 7,490.46

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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.