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Finding the Fourth Proportional to 18,259.50, 25,198.11 and 10,807.50

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Solution

The fourth proportional to 18,259.50, 25,198.11 and 10,807.50 is: 14,914.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.50 : 25,198.11 = 10,807.50 : x
  2. Step 2: Convert to fraction form
    18,259.50/25,198.11 = 10,807.50/x
  3. Step 3: Cross multiply
    18,259.50x = 25,198.11 × 10,807.50
  4. Step 4: Simplify right side
    18,259.50x = 272,328,573.83
  5. Step 5: Solve for x
    x = 272,328,573.83/18,259.50
  6. Step 6: Final answer
    x = 14,914.35

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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.