Home / 14,135.56-21,203.42-8,288.07

Finding the Fourth Proportional to 14,135.56, 21,203.42 and 8,288.07

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Solution

The fourth proportional to 14,135.56, 21,203.42 and 8,288.07 is: 12,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.56 : 21,203.42 = 8,288.07 : x
  2. Step 2: Convert to fraction form
    14,135.56/21,203.42 = 8,288.07/x
  3. Step 3: Cross multiply
    14,135.56x = 21,203.42 × 8,288.07
  4. Step 4: Simplify right side
    14,135.56x = 175,735,429.20
  5. Step 5: Solve for x
    x = 175,735,429.20/14,135.56
  6. Step 6: Final answer
    x = 12,432.15

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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.