Home / 14,382.09-21,579.30-9,719.64

Finding the Fourth Proportional to 14,382.09, 21,579.30 and 9,719.64

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Solution

The fourth proportional to 14,382.09, 21,579.30 and 9,719.64 is: 14,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.09 : 21,579.30 = 9,719.64 : x
  2. Step 2: Convert to fraction form
    14,382.09/21,579.30 = 9,719.64/x
  3. Step 3: Cross multiply
    14,382.09x = 21,579.30 × 9,719.64
  4. Step 4: Simplify right side
    14,382.09x = 209,743,027.45
  5. Step 5: Solve for x
    x = 209,743,027.45/14,382.09
  6. Step 6: Final answer
    x = 14,583.63

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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.