Home / 11,329.94-16,988.22-3,430.05

Finding the Fourth Proportional to 11,329.94, 16,988.22 and 3,430.05

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Solution

The fourth proportional to 11,329.94, 16,988.22 and 3,430.05 is: 5,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.94 : 16,988.22 = 3,430.05 : x
  2. Step 2: Convert to fraction form
    11,329.94/16,988.22 = 3,430.05/x
  3. Step 3: Cross multiply
    11,329.94x = 16,988.22 × 3,430.05
  4. Step 4: Simplify right side
    11,329.94x = 58,270,444.01
  5. Step 5: Solve for x
    x = 58,270,444.01/11,329.94
  6. Step 6: Final answer
    x = 5,143.05

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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.