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Finding the Fourth Proportional to 18,869.30, 26,039.94 and 10,802.92

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Solution

The fourth proportional to 18,869.30, 26,039.94 and 10,802.92 is: 14,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.30 : 26,039.94 = 10,802.92 : x
  2. Step 2: Convert to fraction form
    18,869.30/26,039.94 = 10,802.92/x
  3. Step 3: Cross multiply
    18,869.30x = 26,039.94 × 10,802.92
  4. Step 4: Simplify right side
    18,869.30x = 281,307,388.62
  5. Step 5: Solve for x
    x = 281,307,388.62/18,869.30
  6. Step 6: Final answer
    x = 14,908.20

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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.