Home / 19,517.64-29,278.08-6,369.72

Finding the Fourth Proportional to 19,517.64, 29,278.08 and 6,369.72

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Solution

The fourth proportional to 19,517.64, 29,278.08 and 6,369.72 is: 9,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.64 : 29,278.08 = 6,369.72 : x
  2. Step 2: Convert to fraction form
    19,517.64/29,278.08 = 6,369.72/x
  3. Step 3: Cross multiply
    19,517.64x = 29,278.08 × 6,369.72
  4. Step 4: Simplify right side
    19,517.64x = 186,493,171.74
  5. Step 5: Solve for x
    x = 186,493,171.74/19,517.64
  6. Step 6: Final answer
    x = 9,555.11

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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.