Home / 14,419.82-21,486.40-12,847.76

Finding the Fourth Proportional to 14,419.82, 21,486.40 and 12,847.76

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Solution

The fourth proportional to 14,419.82, 21,486.40 and 12,847.76 is: 19,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,419.82 : 21,486.40 = 12,847.76 : x
  2. Step 2: Convert to fraction form
    14,419.82/21,486.40 = 12,847.76/x
  3. Step 3: Cross multiply
    14,419.82x = 21,486.40 × 12,847.76
  4. Step 4: Simplify right side
    14,419.82x = 276,052,110.46
  5. Step 5: Solve for x
    x = 276,052,110.46/14,419.82
  6. Step 6: Final answer
    x = 19,143.94

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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.