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Finding the Fourth Proportional to 18,118.27, 25,000.80 and 10,051.82

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Solution

The fourth proportional to 18,118.27, 25,000.80 and 10,051.82 is: 13,870.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.27 : 25,000.80 = 10,051.82 : x
  2. Step 2: Convert to fraction form
    18,118.27/25,000.80 = 10,051.82/x
  3. Step 3: Cross multiply
    18,118.27x = 25,000.80 × 10,051.82
  4. Step 4: Simplify right side
    18,118.27x = 251,303,416.45
  5. Step 5: Solve for x
    x = 251,303,416.45/18,118.27
  6. Step 6: Final answer
    x = 13,870.17

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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.