Home / 13,878.84-20,762.97-12,051.48

Finding the Fourth Proportional to 13,878.84, 20,762.97 and 12,051.48

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Solution

The fourth proportional to 13,878.84, 20,762.97 and 12,051.48 is: 18,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.84 : 20,762.97 = 12,051.48 : x
  2. Step 2: Convert to fraction form
    13,878.84/20,762.97 = 12,051.48/x
  3. Step 3: Cross multiply
    13,878.84x = 20,762.97 × 12,051.48
  4. Step 4: Simplify right side
    13,878.84x = 250,224,517.70
  5. Step 5: Solve for x
    x = 250,224,517.70/13,878.84
  6. Step 6: Final answer
    x = 18,029.21

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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.