Home / 14,146.77-21,116.42-12,486.27

Finding the Fourth Proportional to 14,146.77, 21,116.42 and 12,486.27

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Solution

The fourth proportional to 14,146.77, 21,116.42 and 12,486.27 is: 18,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.77 : 21,116.42 = 12,486.27 : x
  2. Step 2: Convert to fraction form
    14,146.77/21,116.42 = 12,486.27/x
  3. Step 3: Cross multiply
    14,146.77x = 21,116.42 × 12,486.27
  4. Step 4: Simplify right side
    14,146.77x = 263,665,352.77
  5. Step 5: Solve for x
    x = 263,665,352.77/14,146.77
  6. Step 6: Final answer
    x = 18,637.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.