Home / 16,635.18-22,939-12,858.96

Finding the Fourth Proportional to 16,635.18, 22,939 and 12,858.96

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Solution

The fourth proportional to 16,635.18, 22,939 and 12,858.96 is: 17,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,635.18 : 22,939 = 12,858.96 : x
  2. Step 2: Convert to fraction form
    16,635.18/22,939 = 12,858.96/x
  3. Step 3: Cross multiply
    16,635.18x = 22,939 × 12,858.96
  4. Step 4: Simplify right side
    16,635.18x = 294,971,683.44
  5. Step 5: Solve for x
    x = 294,971,683.44/16,635.18
  6. Step 6: Final answer
    x = 17,731.80

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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.