Home / 13,765.03-20,647.55-13,063.84

Finding the Fourth Proportional to 13,765.03, 20,647.55 and 13,063.84

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Solution

The fourth proportional to 13,765.03, 20,647.55 and 13,063.84 is: 19,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.03 : 20,647.55 = 13,063.84 : x
  2. Step 2: Convert to fraction form
    13,765.03/20,647.55 = 13,063.84/x
  3. Step 3: Cross multiply
    13,765.03x = 20,647.55 × 13,063.84
  4. Step 4: Simplify right side
    13,765.03x = 269,736,270.63
  5. Step 5: Solve for x
    x = 269,736,270.63/13,765.03
  6. Step 6: Final answer
    x = 19,595.77

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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.