Home / 16,970.54-25,429.82-8,638.07

Finding the Fourth Proportional to 16,970.54, 25,429.82 and 8,638.07

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Solution

The fourth proportional to 16,970.54, 25,429.82 and 8,638.07 is: 12,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,970.54 : 25,429.82 = 8,638.07 : x
  2. Step 2: Convert to fraction form
    16,970.54/25,429.82 = 8,638.07/x
  3. Step 3: Cross multiply
    16,970.54x = 25,429.82 × 8,638.07
  4. Step 4: Simplify right side
    16,970.54x = 219,664,394.91
  5. Step 5: Solve for x
    x = 219,664,394.91/16,970.54
  6. Step 6: Final answer
    x = 12,943.87

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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.