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Finding the Fourth Proportional to 18,864, 26,029.68 and 10,903.32

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Solution

The fourth proportional to 18,864, 26,029.68 and 10,903.32 is: 15,045.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864 : 26,029.68 = 10,903.32 : x
  2. Step 2: Convert to fraction form
    18,864/26,029.68 = 10,903.32/x
  3. Step 3: Cross multiply
    18,864x = 26,029.68 × 10,903.32
  4. Step 4: Simplify right side
    18,864x = 283,809,930.54
  5. Step 5: Solve for x
    x = 283,809,930.54/18,864
  6. Step 6: Final answer
    x = 15,045.06

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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.