Home / 18,238.63-27,359.48-5,091.16

Finding the Fourth Proportional to 18,238.63, 27,359.48 and 5,091.16

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Solution

The fourth proportional to 18,238.63, 27,359.48 and 5,091.16 is: 7,637.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.63 : 27,359.48 = 5,091.16 : x
  2. Step 2: Convert to fraction form
    18,238.63/27,359.48 = 5,091.16/x
  3. Step 3: Cross multiply
    18,238.63x = 27,359.48 × 5,091.16
  4. Step 4: Simplify right side
    18,238.63x = 139,291,490.20
  5. Step 5: Solve for x
    x = 139,291,490.20/18,238.63
  6. Step 6: Final answer
    x = 7,637.17

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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.