Home / 14,431.50-21,535.58-12,876.30

Finding the Fourth Proportional to 14,431.50, 21,535.58 and 12,876.30

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Solution

The fourth proportional to 14,431.50, 21,535.58 and 12,876.30 is: 19,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.50 : 21,535.58 = 12,876.30 : x
  2. Step 2: Convert to fraction form
    14,431.50/21,535.58 = 12,876.30/x
  3. Step 3: Cross multiply
    14,431.50x = 21,535.58 × 12,876.30
  4. Step 4: Simplify right side
    14,431.50x = 277,298,524.37
  5. Step 5: Solve for x
    x = 277,298,524.37/14,431.50
  6. Step 6: Final answer
    x = 19,214.81

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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.