Home / 12,962.79-19,443.96-4,197.72

Finding the Fourth Proportional to 12,962.79, 19,443.96 and 4,197.72

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Solution

The fourth proportional to 12,962.79, 19,443.96 and 4,197.72 is: 6,296.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962.79 : 19,443.96 = 4,197.72 : x
  2. Step 2: Convert to fraction form
    12,962.79/19,443.96 = 4,197.72/x
  3. Step 3: Cross multiply
    12,962.79x = 19,443.96 × 4,197.72
  4. Step 4: Simplify right side
    12,962.79x = 81,620,299.77
  5. Step 5: Solve for x
    x = 81,620,299.77/12,962.79
  6. Step 6: Final answer
    x = 6,296.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.