Home / 14,164.89-21,247.20-8,619.81

Finding the Fourth Proportional to 14,164.89, 21,247.20 and 8,619.81

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Solution

The fourth proportional to 14,164.89, 21,247.20 and 8,619.81 is: 12,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,164.89 : 21,247.20 = 8,619.81 : x
  2. Step 2: Convert to fraction form
    14,164.89/21,247.20 = 8,619.81/x
  3. Step 3: Cross multiply
    14,164.89x = 21,247.20 × 8,619.81
  4. Step 4: Simplify right side
    14,164.89x = 183,146,827.03
  5. Step 5: Solve for x
    x = 183,146,827.03/14,164.89
  6. Step 6: Final answer
    x = 12,929.63

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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.