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Finding the Fourth Proportional to 19,332.95, 26,679 and 11,375.69

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Solution

The fourth proportional to 19,332.95, 26,679 and 11,375.69 is: 15,698.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,332.95 : 26,679 = 11,375.69 : x
  2. Step 2: Convert to fraction form
    19,332.95/26,679 = 11,375.69/x
  3. Step 3: Cross multiply
    19,332.95x = 26,679 × 11,375.69
  4. Step 4: Simplify right side
    19,332.95x = 303,491,900.12
  5. Step 5: Solve for x
    x = 303,491,900.12/19,332.95
  6. Step 6: Final answer
    x = 15,698.17

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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.