Home / 10,685.40-16,028.88-2,894.08

Finding the Fourth Proportional to 10,685.40, 16,028.88 and 2,894.08

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Solution

The fourth proportional to 10,685.40, 16,028.88 and 2,894.08 is: 4,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,685.40 : 16,028.88 = 2,894.08 : x
  2. Step 2: Convert to fraction form
    10,685.40/16,028.88 = 2,894.08/x
  3. Step 3: Cross multiply
    10,685.40x = 16,028.88 × 2,894.08
  4. Step 4: Simplify right side
    10,685.40x = 46,388,861.03
  5. Step 5: Solve for x
    x = 46,388,861.03/10,685.40
  6. Step 6: Final answer
    x = 4,341.33

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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.