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Finding the Fourth Proportional to 19,426, 26,807.88 and 11,043.04

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Solution

The fourth proportional to 19,426, 26,807.88 and 11,043.04 is: 15,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426 : 26,807.88 = 11,043.04 : x
  2. Step 2: Convert to fraction form
    19,426/26,807.88 = 11,043.04/x
  3. Step 3: Cross multiply
    19,426x = 26,807.88 × 11,043.04
  4. Step 4: Simplify right side
    19,426x = 296,040,491.16
  5. Step 5: Solve for x
    x = 296,040,491.16/19,426
  6. Step 6: Final answer
    x = 15,239.40

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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.