Home / 12,068.88-18,108.48-6,807.84

Finding the Fourth Proportional to 12,068.88, 18,108.48 and 6,807.84

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Solution

The fourth proportional to 12,068.88, 18,108.48 and 6,807.84 is: 10,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068.88 : 18,108.48 = 6,807.84 : x
  2. Step 2: Convert to fraction form
    12,068.88/18,108.48 = 6,807.84/x
  3. Step 3: Cross multiply
    12,068.88x = 18,108.48 × 6,807.84
  4. Step 4: Simplify right side
    12,068.88x = 123,279,634.48
  5. Step 5: Solve for x
    x = 123,279,634.48/12,068.88
  6. Step 6: Final answer
    x = 10,214.67

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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.