Home / 13,738.04-20,556-8,194.40

Finding the Fourth Proportional to 13,738.04, 20,556 and 8,194.40

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Solution

The fourth proportional to 13,738.04, 20,556 and 8,194.40 is: 12,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.04 : 20,556 = 8,194.40 : x
  2. Step 2: Convert to fraction form
    13,738.04/20,556 = 8,194.40/x
  3. Step 3: Cross multiply
    13,738.04x = 20,556 × 8,194.40
  4. Step 4: Simplify right side
    13,738.04x = 168,444,086.40
  5. Step 5: Solve for x
    x = 168,444,086.40/13,738.04
  6. Step 6: Final answer
    x = 12,261.14

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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.