Home / 17,640.99-26,436.78-13,255.65

Finding the Fourth Proportional to 17,640.99, 26,436.78 and 13,255.65

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Solution

The fourth proportional to 17,640.99, 26,436.78 and 13,255.65 is: 19,864.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.99 : 26,436.78 = 13,255.65 : x
  2. Step 2: Convert to fraction form
    17,640.99/26,436.78 = 13,255.65/x
  3. Step 3: Cross multiply
    17,640.99x = 26,436.78 × 13,255.65
  4. Step 4: Simplify right side
    17,640.99x = 350,436,702.81
  5. Step 5: Solve for x
    x = 350,436,702.81/17,640.99
  6. Step 6: Final answer
    x = 19,864.91

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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.