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Finding the Fourth Proportional to 18,903.71, 26,085.58 and 10,946.45

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Solution

The fourth proportional to 18,903.71, 26,085.58 and 10,946.45 is: 15,105.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.71 : 26,085.58 = 10,946.45 : x
  2. Step 2: Convert to fraction form
    18,903.71/26,085.58 = 10,946.45/x
  3. Step 3: Cross multiply
    18,903.71x = 26,085.58 × 10,946.45
  4. Step 4: Simplify right side
    18,903.71x = 285,544,535.04
  5. Step 5: Solve for x
    x = 285,544,535.04/18,903.71
  6. Step 6: Final answer
    x = 15,105.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.