Home / 18,501.51-27,749.13-5,175.39

Finding the Fourth Proportional to 18,501.51, 27,749.13 and 5,175.39

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Solution

The fourth proportional to 18,501.51, 27,749.13 and 5,175.39 is: 7,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501.51 : 27,749.13 = 5,175.39 : x
  2. Step 2: Convert to fraction form
    18,501.51/27,749.13 = 5,175.39/x
  3. Step 3: Cross multiply
    18,501.51x = 27,749.13 × 5,175.39
  4. Step 4: Simplify right side
    18,501.51x = 143,612,569.91
  5. Step 5: Solve for x
    x = 143,612,569.91/18,501.51
  6. Step 6: Final answer
    x = 7,762.21

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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.