Home / 18,237.15-27,350.87-5,087.21

Finding the Fourth Proportional to 18,237.15, 27,350.87 and 5,087.21

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Solution

The fourth proportional to 18,237.15, 27,350.87 and 5,087.21 is: 7,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.15 : 27,350.87 = 5,087.21 : x
  2. Step 2: Convert to fraction form
    18,237.15/27,350.87 = 5,087.21/x
  3. Step 3: Cross multiply
    18,237.15x = 27,350.87 × 5,087.21
  4. Step 4: Simplify right side
    18,237.15x = 139,139,457.18
  5. Step 5: Solve for x
    x = 139,139,457.18/18,237.15
  6. Step 6: Final answer
    x = 7,629.45

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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.