Home / 16,911.36-25,362.12-6,520.68

Finding the Fourth Proportional to 16,911.36, 25,362.12 and 6,520.68

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Solution

The fourth proportional to 16,911.36, 25,362.12 and 6,520.68 is: 9,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.36 : 25,362.12 = 6,520.68 : x
  2. Step 2: Convert to fraction form
    16,911.36/25,362.12 = 6,520.68/x
  3. Step 3: Cross multiply
    16,911.36x = 25,362.12 × 6,520.68
  4. Step 4: Simplify right side
    16,911.36x = 165,378,268.64
  5. Step 5: Solve for x
    x = 165,378,268.64/16,911.36
  6. Step 6: Final answer
    x = 9,779.12

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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.