Home / 10,429.07-15,643.53-2,637.90

Finding the Fourth Proportional to 10,429.07, 15,643.53 and 2,637.90

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Solution

The fourth proportional to 10,429.07, 15,643.53 and 2,637.90 is: 3,956.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,429.07 : 15,643.53 = 2,637.90 : x
  2. Step 2: Convert to fraction form
    10,429.07/15,643.53 = 2,637.90/x
  3. Step 3: Cross multiply
    10,429.07x = 15,643.53 × 2,637.90
  4. Step 4: Simplify right side
    10,429.07x = 41,266,067.79
  5. Step 5: Solve for x
    x = 41,266,067.79/10,429.07
  6. Step 6: Final answer
    x = 3,956.83

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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.