Home / 13,356.74-20,021.45-6,779.34

Finding the Fourth Proportional to 13,356.74, 20,021.45 and 6,779.34

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Solution

The fourth proportional to 13,356.74, 20,021.45 and 6,779.34 is: 10,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.74 : 20,021.45 = 6,779.34 : x
  2. Step 2: Convert to fraction form
    13,356.74/20,021.45 = 6,779.34/x
  3. Step 3: Cross multiply
    13,356.74x = 20,021.45 × 6,779.34
  4. Step 4: Simplify right side
    13,356.74x = 135,732,182.95
  5. Step 5: Solve for x
    x = 135,732,182.95/13,356.74
  6. Step 6: Final answer
    x = 10,162.07

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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.