Home / 10,968.98-16,455.88-5,122.40

Finding the Fourth Proportional to 10,968.98, 16,455.88 and 5,122.40

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Solution

The fourth proportional to 10,968.98, 16,455.88 and 5,122.40 is: 7,684.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.98 : 16,455.88 = 5,122.40 : x
  2. Step 2: Convert to fraction form
    10,968.98/16,455.88 = 5,122.40/x
  3. Step 3: Cross multiply
    10,968.98x = 16,455.88 × 5,122.40
  4. Step 4: Simplify right side
    10,968.98x = 84,293,599.71
  5. Step 5: Solve for x
    x = 84,293,599.71/10,968.98
  6. Step 6: Final answer
    x = 7,684.73

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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.