Home / 14,135.80-21,206.76-5,370.88

Finding the Fourth Proportional to 14,135.80, 21,206.76 and 5,370.88

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Solution

The fourth proportional to 14,135.80, 21,206.76 and 5,370.88 is: 8,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.80 : 21,206.76 = 5,370.88 : x
  2. Step 2: Convert to fraction form
    14,135.80/21,206.76 = 5,370.88/x
  3. Step 3: Cross multiply
    14,135.80x = 21,206.76 × 5,370.88
  4. Step 4: Simplify right side
    14,135.80x = 113,898,963.15
  5. Step 5: Solve for x
    x = 113,898,963.15/14,135.80
  6. Step 6: Final answer
    x = 8,057.48

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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.