Home / 16,901.40-25,352.10-8,143.68

Finding the Fourth Proportional to 16,901.40, 25,352.10 and 8,143.68

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Solution

The fourth proportional to 16,901.40, 25,352.10 and 8,143.68 is: 12,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,901.40 : 25,352.10 = 8,143.68 : x
  2. Step 2: Convert to fraction form
    16,901.40/25,352.10 = 8,143.68/x
  3. Step 3: Cross multiply
    16,901.40x = 25,352.10 × 8,143.68
  4. Step 4: Simplify right side
    16,901.40x = 206,459,389.73
  5. Step 5: Solve for x
    x = 206,459,389.73/16,901.40
  6. Step 6: Final answer
    x = 12,215.52

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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.