Home / 16,672.21-23,006.81-9,218.77

Finding the Fourth Proportional to 16,672.21, 23,006.81 and 9,218.77

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Solution

The fourth proportional to 16,672.21, 23,006.81 and 9,218.77 is: 12,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,672.21 : 23,006.81 = 9,218.77 : x
  2. Step 2: Convert to fraction form
    16,672.21/23,006.81 = 9,218.77/x
  3. Step 3: Cross multiply
    16,672.21x = 23,006.81 × 9,218.77
  4. Step 4: Simplify right side
    16,672.21x = 212,094,443.73
  5. Step 5: Solve for x
    x = 212,094,443.73/16,672.21
  6. Step 6: Final answer
    x = 12,721.44

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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.