Home / 14,446.72-19,905.96-12,857.68

Finding the Fourth Proportional to 14,446.72, 19,905.96 and 12,857.68

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Solution

The fourth proportional to 14,446.72, 19,905.96 and 12,857.68 is: 17,716.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,446.72 : 19,905.96 = 12,857.68 : x
  2. Step 2: Convert to fraction form
    14,446.72/19,905.96 = 12,857.68/x
  3. Step 3: Cross multiply
    14,446.72x = 19,905.96 × 12,857.68
  4. Step 4: Simplify right side
    14,446.72x = 255,944,463.77
  5. Step 5: Solve for x
    x = 255,944,463.77/14,446.72
  6. Step 6: Final answer
    x = 17,716.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.