Home / 13,815.39-19,064.97-8,510.07

Finding the Fourth Proportional to 13,815.39, 19,064.97 and 8,510.07

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Solution

The fourth proportional to 13,815.39, 19,064.97 and 8,510.07 is: 11,743.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.39 : 19,064.97 = 8,510.07 : x
  2. Step 2: Convert to fraction form
    13,815.39/19,064.97 = 8,510.07/x
  3. Step 3: Cross multiply
    13,815.39x = 19,064.97 × 8,510.07
  4. Step 4: Simplify right side
    13,815.39x = 162,244,229.25
  5. Step 5: Solve for x
    x = 162,244,229.25/13,815.39
  6. Step 6: Final answer
    x = 11,743.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.