Home / 9,110.87-12,576.52-7,122.07

Finding the Fourth Proportional to 9,110.87, 12,576.52 and 7,122.07

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Solution

The fourth proportional to 9,110.87, 12,576.52 and 7,122.07 is: 9,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,110.87 : 12,576.52 = 7,122.07 : x
  2. Step 2: Convert to fraction form
    9,110.87/12,576.52 = 7,122.07/x
  3. Step 3: Cross multiply
    9,110.87x = 12,576.52 × 7,122.07
  4. Step 4: Simplify right side
    9,110.87x = 89,570,792.91
  5. Step 5: Solve for x
    x = 89,570,792.91/9,110.87
  6. Step 6: Final answer
    x = 9,831.21

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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.