Home / 13,697.37-20,504.13-8,771.76

Finding the Fourth Proportional to 13,697.37, 20,504.13 and 8,771.76

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Solution

The fourth proportional to 13,697.37, 20,504.13 and 8,771.76 is: 13,130.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.37 : 20,504.13 = 8,771.76 : x
  2. Step 2: Convert to fraction form
    13,697.37/20,504.13 = 8,771.76/x
  3. Step 3: Cross multiply
    13,697.37x = 20,504.13 × 8,771.76
  4. Step 4: Simplify right side
    13,697.37x = 179,857,307.37
  5. Step 5: Solve for x
    x = 179,857,307.37/13,697.37
  6. Step 6: Final answer
    x = 13,130.79

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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.