Home / 14,338.08-19,732.68-12,128.94

Finding the Fourth Proportional to 14,338.08, 19,732.68 and 12,128.94

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Solution

The fourth proportional to 14,338.08, 19,732.68 and 12,128.94 is: 16,692.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,338.08 : 19,732.68 = 12,128.94 : x
  2. Step 2: Convert to fraction form
    14,338.08/19,732.68 = 12,128.94/x
  3. Step 3: Cross multiply
    14,338.08x = 19,732.68 × 12,128.94
  4. Step 4: Simplify right side
    14,338.08x = 239,336,491.76
  5. Step 5: Solve for x
    x = 239,336,491.76/14,338.08
  6. Step 6: Final answer
    x = 16,692.37

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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.