Home / 13,025.40-17,982.72-8,556.95

Finding the Fourth Proportional to 13,025.40, 17,982.72 and 8,556.95

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Solution

The fourth proportional to 13,025.40, 17,982.72 and 8,556.95 is: 11,813.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,025.40 : 17,982.72 = 8,556.95 : x
  2. Step 2: Convert to fraction form
    13,025.40/17,982.72 = 8,556.95/x
  3. Step 3: Cross multiply
    13,025.40x = 17,982.72 × 8,556.95
  4. Step 4: Simplify right side
    13,025.40x = 153,877,145.99
  5. Step 5: Solve for x
    x = 153,877,145.99/13,025.40
  6. Step 6: Final answer
    x = 11,813.62

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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.