Home / 7,929.40-11,894.10-6,676.60

Finding the Fourth Proportional to 7,929.40, 11,894.10 and 6,676.60

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Solution

The fourth proportional to 7,929.40, 11,894.10 and 6,676.60 is: 10,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.40 : 11,894.10 = 6,676.60 : x
  2. Step 2: Convert to fraction form
    7,929.40/11,894.10 = 6,676.60/x
  3. Step 3: Cross multiply
    7,929.40x = 11,894.10 × 6,676.60
  4. Step 4: Simplify right side
    7,929.40x = 79,412,148.06
  5. Step 5: Solve for x
    x = 79,412,148.06/7,929.40
  6. Step 6: Final answer
    x = 10,014.90

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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.