Home / 14,208.84-21,288.24-12,662.58

Finding the Fourth Proportional to 14,208.84, 21,288.24 and 12,662.58

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Solution

The fourth proportional to 14,208.84, 21,288.24 and 12,662.58 is: 18,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.84 : 21,288.24 = 12,662.58 : x
  2. Step 2: Convert to fraction form
    14,208.84/21,288.24 = 12,662.58/x
  3. Step 3: Cross multiply
    14,208.84x = 21,288.24 × 12,662.58
  4. Step 4: Simplify right side
    14,208.84x = 269,564,042.06
  5. Step 5: Solve for x
    x = 269,564,042.06/14,208.84
  6. Step 6: Final answer
    x = 18,971.57

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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.