Home / 14,321.20-19,759.98-9,619.06

Finding the Fourth Proportional to 14,321.20, 19,759.98 and 9,619.06

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Solution

The fourth proportional to 14,321.20, 19,759.98 and 9,619.06 is: 13,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.20 : 19,759.98 = 9,619.06 : x
  2. Step 2: Convert to fraction form
    14,321.20/19,759.98 = 9,619.06/x
  3. Step 3: Cross multiply
    14,321.20x = 19,759.98 × 9,619.06
  4. Step 4: Simplify right side
    14,321.20x = 190,072,433.22
  5. Step 5: Solve for x
    x = 190,072,433.22/14,321.20
  6. Step 6: Final answer
    x = 13,272.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.