Home / 9,219.96-12,723.55-5,240.97

Finding the Fourth Proportional to 9,219.96, 12,723.55 and 5,240.97

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Solution

The fourth proportional to 9,219.96, 12,723.55 and 5,240.97 is: 7,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.96 : 12,723.55 = 5,240.97 : x
  2. Step 2: Convert to fraction form
    9,219.96/12,723.55 = 5,240.97/x
  3. Step 3: Cross multiply
    9,219.96x = 12,723.55 × 5,240.97
  4. Step 4: Simplify right side
    9,219.96x = 66,683,730.74
  5. Step 5: Solve for x
    x = 66,683,730.74/9,219.96
  6. Step 6: Final answer
    x = 7,232.54

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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.