Home / 18,259.53-27,389.99-5,111.57

Finding the Fourth Proportional to 18,259.53, 27,389.99 and 5,111.57

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Solution

The fourth proportional to 18,259.53, 27,389.99 and 5,111.57 is: 7,667.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.53 : 27,389.99 = 5,111.57 : x
  2. Step 2: Convert to fraction form
    18,259.53/27,389.99 = 5,111.57/x
  3. Step 3: Cross multiply
    18,259.53x = 27,389.99 × 5,111.57
  4. Step 4: Simplify right side
    18,259.53x = 140,005,688.68
  5. Step 5: Solve for x
    x = 140,005,688.68/18,259.53
  6. Step 6: Final answer
    x = 7,667.54

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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.