Home / 19,738.47-29,628.78-8,499.38

Finding the Fourth Proportional to 19,738.47, 29,628.78 and 8,499.38

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Solution

The fourth proportional to 19,738.47, 29,628.78 and 8,499.38 is: 12,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.47 : 29,628.78 = 8,499.38 : x
  2. Step 2: Convert to fraction form
    19,738.47/29,628.78 = 8,499.38/x
  3. Step 3: Cross multiply
    19,738.47x = 29,628.78 × 8,499.38
  4. Step 4: Simplify right side
    19,738.47x = 251,826,260.16
  5. Step 5: Solve for x
    x = 251,826,260.16/19,738.47
  6. Step 6: Final answer
    x = 12,758.14

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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.