Home / 6,915.05-10,360.20-4,205.30

Finding the Fourth Proportional to 6,915.05, 10,360.20 and 4,205.30

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Solution

The fourth proportional to 6,915.05, 10,360.20 and 4,205.30 is: 6,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.05 : 10,360.20 = 4,205.30 : x
  2. Step 2: Convert to fraction form
    6,915.05/10,360.20 = 4,205.30/x
  3. Step 3: Cross multiply
    6,915.05x = 10,360.20 × 4,205.30
  4. Step 4: Simplify right side
    6,915.05x = 43,567,749.06
  5. Step 5: Solve for x
    x = 43,567,749.06/6,915.05
  6. Step 6: Final answer
    x = 6,300.42

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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.