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Finding the Fourth Proportional to 18,920.04, 26,108.64 and 10,536

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Solution

The fourth proportional to 18,920.04, 26,108.64 and 10,536 is: 14,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920.04 : 26,108.64 = 10,536 : x
  2. Step 2: Convert to fraction form
    18,920.04/26,108.64 = 10,536/x
  3. Step 3: Cross multiply
    18,920.04x = 26,108.64 × 10,536
  4. Step 4: Simplify right side
    18,920.04x = 275,080,631.04
  5. Step 5: Solve for x
    x = 275,080,631.04/18,920.04
  6. Step 6: Final answer
    x = 14,539.11

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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.