Home / 7,968.11-11,952.15-2,421.43

Finding the Fourth Proportional to 7,968.11, 11,952.15 and 2,421.43

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Solution

The fourth proportional to 7,968.11, 11,952.15 and 2,421.43 is: 3,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.11 : 11,952.15 = 2,421.43 : x
  2. Step 2: Convert to fraction form
    7,968.11/11,952.15 = 2,421.43/x
  3. Step 3: Cross multiply
    7,968.11x = 11,952.15 × 2,421.43
  4. Step 4: Simplify right side
    7,968.11x = 28,941,222.71
  5. Step 5: Solve for x
    x = 28,941,222.71/7,968.11
  6. Step 6: Final answer
    x = 3,632.13

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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.