Home / 14,122.60-21,185.70-5,360.02

Finding the Fourth Proportional to 14,122.60, 21,185.70 and 5,360.02

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Solution

The fourth proportional to 14,122.60, 21,185.70 and 5,360.02 is: 8,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.60 : 21,185.70 = 5,360.02 : x
  2. Step 2: Convert to fraction form
    14,122.60/21,185.70 = 5,360.02/x
  3. Step 3: Cross multiply
    14,122.60x = 21,185.70 × 5,360.02
  4. Step 4: Simplify right side
    14,122.60x = 113,555,775.71
  5. Step 5: Solve for x
    x = 113,555,775.71/14,122.60
  6. Step 6: Final answer
    x = 8,040.71

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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.