Home / 14,147.21-21,220.43-4,787.16

Finding the Fourth Proportional to 14,147.21, 21,220.43 and 4,787.16

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Solution

The fourth proportional to 14,147.21, 21,220.43 and 4,787.16 is: 7,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.21 : 21,220.43 = 4,787.16 : x
  2. Step 2: Convert to fraction form
    14,147.21/21,220.43 = 4,787.16/x
  3. Step 3: Cross multiply
    14,147.21x = 21,220.43 × 4,787.16
  4. Step 4: Simplify right side
    14,147.21x = 101,585,569.74
  5. Step 5: Solve for x
    x = 101,585,569.74/14,147.21
  6. Step 6: Final answer
    x = 7,180.61

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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.