Home / 19,690.62-29,527.26-7,207.40

Finding the Fourth Proportional to 19,690.62, 29,527.26 and 7,207.40

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Solution

The fourth proportional to 19,690.62, 29,527.26 and 7,207.40 is: 10,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.62 : 29,527.26 = 7,207.40 : x
  2. Step 2: Convert to fraction form
    19,690.62/29,527.26 = 7,207.40/x
  3. Step 3: Cross multiply
    19,690.62x = 29,527.26 × 7,207.40
  4. Step 4: Simplify right side
    19,690.62x = 212,814,773.72
  5. Step 5: Solve for x
    x = 212,814,773.72/19,690.62
  6. Step 6: Final answer
    x = 10,807.93

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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.