Home / 14,190.46-21,263.61-5,420.59

Finding the Fourth Proportional to 14,190.46, 21,263.61 and 5,420.59

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Solution

The fourth proportional to 14,190.46, 21,263.61 and 5,420.59 is: 8,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190.46 : 21,263.61 = 5,420.59 : x
  2. Step 2: Convert to fraction form
    14,190.46/21,263.61 = 5,420.59/x
  3. Step 3: Cross multiply
    14,190.46x = 21,263.61 × 5,420.59
  4. Step 4: Simplify right side
    14,190.46x = 115,261,311.73
  5. Step 5: Solve for x
    x = 115,261,311.73/14,190.46
  6. Step 6: Final answer
    x = 8,122.45

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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.