Home / 8,021.22-12,030.36-2,178.30

Finding the Fourth Proportional to 8,021.22, 12,030.36 and 2,178.30

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Solution

The fourth proportional to 8,021.22, 12,030.36 and 2,178.30 is: 3,267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.22 : 12,030.36 = 2,178.30 : x
  2. Step 2: Convert to fraction form
    8,021.22/12,030.36 = 2,178.30/x
  3. Step 3: Cross multiply
    8,021.22x = 12,030.36 × 2,178.30
  4. Step 4: Simplify right side
    8,021.22x = 26,205,733.19
  5. Step 5: Solve for x
    x = 26,205,733.19/8,021.22
  6. Step 6: Final answer
    x = 3,267.05

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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.