Home / 14,779.10-20,383.60-9,474.42

Finding the Fourth Proportional to 14,779.10, 20,383.60 and 9,474.42

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Solution

The fourth proportional to 14,779.10, 20,383.60 and 9,474.42 is: 13,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.10 : 20,383.60 = 9,474.42 : x
  2. Step 2: Convert to fraction form
    14,779.10/20,383.60 = 9,474.42/x
  3. Step 3: Cross multiply
    14,779.10x = 20,383.60 × 9,474.42
  4. Step 4: Simplify right side
    14,779.10x = 193,122,787.51
  5. Step 5: Solve for x
    x = 193,122,787.51/14,779.10
  6. Step 6: Final answer
    x = 13,067.29

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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.