Home / 13,853.18-20,779.05-4,493.06

Finding the Fourth Proportional to 13,853.18, 20,779.05 and 4,493.06

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Solution

The fourth proportional to 13,853.18, 20,779.05 and 4,493.06 is: 6,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.18 : 20,779.05 = 4,493.06 : x
  2. Step 2: Convert to fraction form
    13,853.18/20,779.05 = 4,493.06/x
  3. Step 3: Cross multiply
    13,853.18x = 20,779.05 × 4,493.06
  4. Step 4: Simplify right side
    13,853.18x = 93,361,518.39
  5. Step 5: Solve for x
    x = 93,361,518.39/13,853.18
  6. Step 6: Final answer
    x = 6,739.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.