Home / 16,428.39-22,678.41-11,986.02

Finding the Fourth Proportional to 16,428.39, 22,678.41 and 11,986.02

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Solution

The fourth proportional to 16,428.39, 22,678.41 and 11,986.02 is: 16,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,428.39 : 22,678.41 = 11,986.02 : x
  2. Step 2: Convert to fraction form
    16,428.39/22,678.41 = 11,986.02/x
  3. Step 3: Cross multiply
    16,428.39x = 22,678.41 × 11,986.02
  4. Step 4: Simplify right side
    16,428.39x = 271,823,875.83
  5. Step 5: Solve for x
    x = 271,823,875.83/16,428.39
  6. Step 6: Final answer
    x = 16,545.98

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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.