Home / 14,961.96-20,647.35-8,916.36

Finding the Fourth Proportional to 14,961.96, 20,647.35 and 8,916.36

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Solution

The fourth proportional to 14,961.96, 20,647.35 and 8,916.36 is: 12,304.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.96 : 20,647.35 = 8,916.36 : x
  2. Step 2: Convert to fraction form
    14,961.96/20,647.35 = 8,916.36/x
  3. Step 3: Cross multiply
    14,961.96x = 20,647.35 × 8,916.36
  4. Step 4: Simplify right side
    14,961.96x = 184,099,205.65
  5. Step 5: Solve for x
    x = 184,099,205.65/14,961.96
  6. Step 6: Final answer
    x = 12,304.48

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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.