Home / 6,914.30-10,347.75-4,280.78

Finding the Fourth Proportional to 6,914.30, 10,347.75 and 4,280.78

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Solution

The fourth proportional to 6,914.30, 10,347.75 and 4,280.78 is: 6,406.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,914.30 : 10,347.75 = 4,280.78 : x
  2. Step 2: Convert to fraction form
    6,914.30/10,347.75 = 4,280.78/x
  3. Step 3: Cross multiply
    6,914.30x = 10,347.75 × 4,280.78
  4. Step 4: Simplify right side
    6,914.30x = 44,296,467.11
  5. Step 5: Solve for x
    x = 44,296,467.11/6,914.30
  6. Step 6: Final answer
    x = 6,406.51

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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.