Home / 9,190.99-12,683.57-5,212.12

Finding the Fourth Proportional to 9,190.99, 12,683.57 and 5,212.12

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Solution

The fourth proportional to 9,190.99, 12,683.57 and 5,212.12 is: 7,192.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.99 : 12,683.57 = 5,212.12 : x
  2. Step 2: Convert to fraction form
    9,190.99/12,683.57 = 5,212.12/x
  3. Step 3: Cross multiply
    9,190.99x = 12,683.57 × 5,212.12
  4. Step 4: Simplify right side
    9,190.99x = 66,108,225.45
  5. Step 5: Solve for x
    x = 66,108,225.45/9,190.99
  6. Step 6: Final answer
    x = 7,192.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.