Home / 18,259.22-27,389.51-5,111.25

Finding the Fourth Proportional to 18,259.22, 27,389.51 and 5,111.25

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Solution

The fourth proportional to 18,259.22, 27,389.51 and 5,111.25 is: 7,667.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.22 : 27,389.51 = 5,111.25 : x
  2. Step 2: Convert to fraction form
    18,259.22/27,389.51 = 5,111.25/x
  3. Step 3: Cross multiply
    18,259.22x = 27,389.51 × 5,111.25
  4. Step 4: Simplify right side
    18,259.22x = 139,994,632.99
  5. Step 5: Solve for x
    x = 139,994,632.99/18,259.22
  6. Step 6: Final answer
    x = 7,667.07

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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.