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Finding the Fourth Proportional to 16,651.76, 22,977.41 and 9,479.07

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Solution

The fourth proportional to 16,651.76, 22,977.41 and 9,479.07 is: 13,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,651.76 : 22,977.41 = 9,479.07 : x
  2. Step 2: Convert to fraction form
    16,651.76/22,977.41 = 9,479.07/x
  3. Step 3: Cross multiply
    16,651.76x = 22,977.41 × 9,479.07
  4. Step 4: Simplify right side
    16,651.76x = 217,804,430.41
  5. Step 5: Solve for x
    x = 217,804,430.41/16,651.76
  6. Step 6: Final answer
    x = 13,079.97

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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.