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Finding the Fourth Proportional to 18,805, 25,953.49 and 10,847.05

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Solution

The fourth proportional to 18,805, 25,953.49 and 10,847.05 is: 14,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805 : 25,953.49 = 10,847.05 : x
  2. Step 2: Convert to fraction form
    18,805/25,953.49 = 10,847.05/x
  3. Step 3: Cross multiply
    18,805x = 25,953.49 × 10,847.05
  4. Step 4: Simplify right side
    18,805x = 281,518,803.70
  5. Step 5: Solve for x
    x = 281,518,803.70/18,805
  6. Step 6: Final answer
    x = 14,970.42

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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.