Home / 12,108.07-16,709.88-6,802.89

Finding the Fourth Proportional to 12,108.07, 16,709.88 and 6,802.89

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Solution

The fourth proportional to 12,108.07, 16,709.88 and 6,802.89 is: 9,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.07 : 16,709.88 = 6,802.89 : x
  2. Step 2: Convert to fraction form
    12,108.07/16,709.88 = 6,802.89/x
  3. Step 3: Cross multiply
    12,108.07x = 16,709.88 × 6,802.89
  4. Step 4: Simplify right side
    12,108.07x = 113,675,475.55
  5. Step 5: Solve for x
    x = 113,675,475.55/12,108.07
  6. Step 6: Final answer
    x = 9,388.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.