Home / 11,678.48-17,508.27-7,971.38

Finding the Fourth Proportional to 11,678.48, 17,508.27 and 7,971.38

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Solution

The fourth proportional to 11,678.48, 17,508.27 and 7,971.38 is: 11,950.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.48 : 17,508.27 = 7,971.38 : x
  2. Step 2: Convert to fraction form
    11,678.48/17,508.27 = 7,971.38/x
  3. Step 3: Cross multiply
    11,678.48x = 17,508.27 × 7,971.38
  4. Step 4: Simplify right side
    11,678.48x = 139,565,073.31
  5. Step 5: Solve for x
    x = 139,565,073.31/11,678.48
  6. Step 6: Final answer
    x = 11,950.62

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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.