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Finding the Fourth Proportional to 18,756.95, 25,891.11 and 10,802.34

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Solution

The fourth proportional to 18,756.95, 25,891.11 and 10,802.34 is: 14,910.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756.95 : 25,891.11 = 10,802.34 : x
  2. Step 2: Convert to fraction form
    18,756.95/25,891.11 = 10,802.34/x
  3. Step 3: Cross multiply
    18,756.95x = 25,891.11 × 10,802.34
  4. Step 4: Simplify right side
    18,756.95x = 279,684,610.92
  5. Step 5: Solve for x
    x = 279,684,610.92/18,756.95
  6. Step 6: Final answer
    x = 14,910.99

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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.