Home / 14,144.90-19,520.33-8,480.57

Finding the Fourth Proportional to 14,144.90, 19,520.33 and 8,480.57

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Solution

The fourth proportional to 14,144.90, 19,520.33 and 8,480.57 is: 11,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.90 : 19,520.33 = 8,480.57 : x
  2. Step 2: Convert to fraction form
    14,144.90/19,520.33 = 8,480.57/x
  3. Step 3: Cross multiply
    14,144.90x = 19,520.33 × 8,480.57
  4. Step 4: Simplify right side
    14,144.90x = 165,543,384.98
  5. Step 5: Solve for x
    x = 165,543,384.98/14,144.90
  6. Step 6: Final answer
    x = 11,703.40

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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.