Home / 15,110.58-20,852.70-8,396.28

Finding the Fourth Proportional to 15,110.58, 20,852.70 and 8,396.28

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Solution

The fourth proportional to 15,110.58, 20,852.70 and 8,396.28 is: 11,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.58 : 20,852.70 = 8,396.28 : x
  2. Step 2: Convert to fraction form
    15,110.58/20,852.70 = 8,396.28/x
  3. Step 3: Cross multiply
    15,110.58x = 20,852.70 × 8,396.28
  4. Step 4: Simplify right side
    15,110.58x = 175,085,107.96
  5. Step 5: Solve for x
    x = 175,085,107.96/15,110.58
  6. Step 6: Final answer
    x = 11,586.92

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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.