Home / 9,191.26-12,683.75-5,212.41

Finding the Fourth Proportional to 9,191.26, 12,683.75 and 5,212.41

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Solution

The fourth proportional to 9,191.26, 12,683.75 and 5,212.41 is: 7,193.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.26 : 12,683.75 = 5,212.41 : x
  2. Step 2: Convert to fraction form
    9,191.26/12,683.75 = 5,212.41/x
  3. Step 3: Cross multiply
    9,191.26x = 12,683.75 × 5,212.41
  4. Step 4: Simplify right side
    9,191.26x = 66,112,905.34
  5. Step 5: Solve for x
    x = 66,112,905.34/9,191.26
  6. Step 6: Final answer
    x = 7,193.02

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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.