Home / 14,451.82-21,678.47-13,662.91

Finding the Fourth Proportional to 14,451.82, 21,678.47 and 13,662.91

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Solution

The fourth proportional to 14,451.82, 21,678.47 and 13,662.91 is: 20,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,451.82 : 21,678.47 = 13,662.91 : x
  2. Step 2: Convert to fraction form
    14,451.82/21,678.47 = 13,662.91/x
  3. Step 3: Cross multiply
    14,451.82x = 21,678.47 × 13,662.91
  4. Step 4: Simplify right side
    14,451.82x = 296,190,994.57
  5. Step 5: Solve for x
    x = 296,190,994.57/14,451.82
  6. Step 6: Final answer
    x = 20,495.07

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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.