Home / 8,214.89-12,322.33-2,291.78

Finding the Fourth Proportional to 8,214.89, 12,322.33 and 2,291.78

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Solution

The fourth proportional to 8,214.89, 12,322.33 and 2,291.78 is: 3,437.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.89 : 12,322.33 = 2,291.78 : x
  2. Step 2: Convert to fraction form
    8,214.89/12,322.33 = 2,291.78/x
  3. Step 3: Cross multiply
    8,214.89x = 12,322.33 × 2,291.78
  4. Step 4: Simplify right side
    8,214.89x = 28,240,094.52
  5. Step 5: Solve for x
    x = 28,240,094.52/8,214.89
  6. Step 6: Final answer
    x = 3,437.67

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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.