Home / 17,639.95-26,462.09-7,781.71

Finding the Fourth Proportional to 17,639.95, 26,462.09 and 7,781.71

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Solution

The fourth proportional to 17,639.95, 26,462.09 and 7,781.71 is: 11,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,639.95 : 26,462.09 = 7,781.71 : x
  2. Step 2: Convert to fraction form
    17,639.95/26,462.09 = 7,781.71/x
  3. Step 3: Cross multiply
    17,639.95x = 26,462.09 × 7,781.71
  4. Step 4: Simplify right side
    17,639.95x = 205,920,310.37
  5. Step 5: Solve for x
    x = 205,920,310.37/17,639.95
  6. Step 6: Final answer
    x = 11,673.52

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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.