Home / 14,263.20-21,399.66-7,690.02

Finding the Fourth Proportional to 14,263.20, 21,399.66 and 7,690.02

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Solution

The fourth proportional to 14,263.20, 21,399.66 and 7,690.02 is: 11,537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,263.20 : 21,399.66 = 7,690.02 : x
  2. Step 2: Convert to fraction form
    14,263.20/21,399.66 = 7,690.02/x
  3. Step 3: Cross multiply
    14,263.20x = 21,399.66 × 7,690.02
  4. Step 4: Simplify right side
    14,263.20x = 164,563,813.39
  5. Step 5: Solve for x
    x = 164,563,813.39/14,263.20
  6. Step 6: Final answer
    x = 11,537.65

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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.