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Finding the Fourth Proportional to 19,463, 26,858.98 and 11,079.50

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Solution

The fourth proportional to 19,463, 26,858.98 and 11,079.50 is: 15,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,463 : 26,858.98 = 11,079.50 : x
  2. Step 2: Convert to fraction form
    19,463/26,858.98 = 11,079.50/x
  3. Step 3: Cross multiply
    19,463x = 26,858.98 × 11,079.50
  4. Step 4: Simplify right side
    19,463x = 297,584,068.91
  5. Step 5: Solve for x
    x = 297,584,068.91/19,463
  6. Step 6: Final answer
    x = 15,289.73

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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.