Home / 19,687.45-29,535.63-7,207.42

Finding the Fourth Proportional to 19,687.45, 29,535.63 and 7,207.42

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Solution

The fourth proportional to 19,687.45, 29,535.63 and 7,207.42 is: 10,812.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.45 : 29,535.63 = 7,207.42 : x
  2. Step 2: Convert to fraction form
    19,687.45/29,535.63 = 7,207.42/x
  3. Step 3: Cross multiply
    19,687.45x = 29,535.63 × 7,207.42
  4. Step 4: Simplify right side
    19,687.45x = 212,875,690.37
  5. Step 5: Solve for x
    x = 212,875,690.37/19,687.45
  6. Step 6: Final answer
    x = 10,812.76

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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.