Home / 7,143.09-10,716.30-2,212.47

Finding the Fourth Proportional to 7,143.09, 10,716.30 and 2,212.47

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Solution

The fourth proportional to 7,143.09, 10,716.30 and 2,212.47 is: 3,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.09 : 10,716.30 = 2,212.47 : x
  2. Step 2: Convert to fraction form
    7,143.09/10,716.30 = 2,212.47/x
  3. Step 3: Cross multiply
    7,143.09x = 10,716.30 × 2,212.47
  4. Step 4: Simplify right side
    7,143.09x = 23,709,492.26
  5. Step 5: Solve for x
    x = 23,709,492.26/7,143.09
  6. Step 6: Final answer
    x = 3,319.22

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1.5x scale

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.