Home / 12,130.76-18,196.24-3,365.76

Finding the Fourth Proportional to 12,130.76, 18,196.24 and 3,365.76

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Solution

The fourth proportional to 12,130.76, 18,196.24 and 3,365.76 is: 5,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.76 : 18,196.24 = 3,365.76 : x
  2. Step 2: Convert to fraction form
    12,130.76/18,196.24 = 3,365.76/x
  3. Step 3: Cross multiply
    12,130.76x = 18,196.24 × 3,365.76
  4. Step 4: Simplify right side
    12,130.76x = 61,244,176.74
  5. Step 5: Solve for x
    x = 61,244,176.74/12,130.76
  6. Step 6: Final answer
    x = 5,048.67

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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.