Home / 6,914.20-10,355.10-4,289.80

Finding the Fourth Proportional to 6,914.20, 10,355.10 and 4,289.80

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Solution

The fourth proportional to 6,914.20, 10,355.10 and 4,289.80 is: 6,424.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,914.20 : 10,355.10 = 4,289.80 : x
  2. Step 2: Convert to fraction form
    6,914.20/10,355.10 = 4,289.80/x
  3. Step 3: Cross multiply
    6,914.20x = 10,355.10 × 4,289.80
  4. Step 4: Simplify right side
    6,914.20x = 44,421,307.98
  5. Step 5: Solve for x
    x = 44,421,307.98/6,914.20
  6. Step 6: Final answer
    x = 6,424.65

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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.