Home / 17,717.40-26,578.98-5,238.69

Finding the Fourth Proportional to 17,717.40, 26,578.98 and 5,238.69

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Solution

The fourth proportional to 17,717.40, 26,578.98 and 5,238.69 is: 7,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,717.40 : 26,578.98 = 5,238.69 : x
  2. Step 2: Convert to fraction form
    17,717.40/26,578.98 = 5,238.69/x
  3. Step 3: Cross multiply
    17,717.40x = 26,578.98 × 5,238.69
  4. Step 4: Simplify right side
    17,717.40x = 139,239,036.74
  5. Step 5: Solve for x
    x = 139,239,036.74/17,717.40
  6. Step 6: Final answer
    x = 7,858.89

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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.