Home / 13,759.74-20,640.09-4,875.99

Finding the Fourth Proportional to 13,759.74, 20,640.09 and 4,875.99

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Solution

The fourth proportional to 13,759.74, 20,640.09 and 4,875.99 is: 7,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,759.74 : 20,640.09 = 4,875.99 : x
  2. Step 2: Convert to fraction form
    13,759.74/20,640.09 = 4,875.99/x
  3. Step 3: Cross multiply
    13,759.74x = 20,640.09 × 4,875.99
  4. Step 4: Simplify right side
    13,759.74x = 100,640,872.44
  5. Step 5: Solve for x
    x = 100,640,872.44/13,759.74
  6. Step 6: Final answer
    x = 7,314.16

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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.