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Finding the Fourth Proportional to 19,322.54, 28,994.73 and 8,934.29

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Solution

The fourth proportional to 19,322.54, 28,994.73 and 8,934.29 is: 13,406.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,322.54 : 28,994.73 = 8,934.29 : x
  2. Step 2: Convert to fraction form
    19,322.54/28,994.73 = 8,934.29/x
  3. Step 3: Cross multiply
    19,322.54x = 28,994.73 × 8,934.29
  4. Step 4: Simplify right side
    19,322.54x = 259,047,181.32
  5. Step 5: Solve for x
    x = 259,047,181.32/19,322.54
  6. Step 6: Final answer
    x = 13,406.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.