Home / 13,219.08-19,789.75-8,525.23

Finding the Fourth Proportional to 13,219.08, 19,789.75 and 8,525.23

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Solution

The fourth proportional to 13,219.08, 19,789.75 and 8,525.23 is: 12,762.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.08 : 19,789.75 = 8,525.23 : x
  2. Step 2: Convert to fraction form
    13,219.08/19,789.75 = 8,525.23/x
  3. Step 3: Cross multiply
    13,219.08x = 19,789.75 × 8,525.23
  4. Step 4: Simplify right side
    13,219.08x = 168,712,170.39
  5. Step 5: Solve for x
    x = 168,712,170.39/13,219.08
  6. Step 6: Final answer
    x = 12,762.78

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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.