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Finding the Fourth Proportional to 14,490.64, 21,739.07 and 8,253.64

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Solution

The fourth proportional to 14,490.64, 21,739.07 and 8,253.64 is: 12,382.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.64 : 21,739.07 = 8,253.64 : x
  2. Step 2: Convert to fraction form
    14,490.64/21,739.07 = 8,253.64/x
  3. Step 3: Cross multiply
    14,490.64x = 21,739.07 × 8,253.64
  4. Step 4: Simplify right side
    14,490.64x = 179,426,457.71
  5. Step 5: Solve for x
    x = 179,426,457.71/14,490.64
  6. Step 6: Final answer
    x = 12,382.23

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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.