Home / 16,428.83-22,674.13-9,355.91

Finding the Fourth Proportional to 16,428.83, 22,674.13 and 9,355.91

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Solution

The fourth proportional to 16,428.83, 22,674.13 and 9,355.91 is: 12,912.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,428.83 : 22,674.13 = 9,355.91 : x
  2. Step 2: Convert to fraction form
    16,428.83/22,674.13 = 9,355.91/x
  3. Step 3: Cross multiply
    16,428.83x = 22,674.13 × 9,355.91
  4. Step 4: Simplify right side
    16,428.83x = 212,136,982.85
  5. Step 5: Solve for x
    x = 212,136,982.85/16,428.83
  6. Step 6: Final answer
    x = 12,912.49

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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.