Home / 6,845.40-9,445.20-4,012.20

Finding the Fourth Proportional to 6,845.40, 9,445.20 and 4,012.20

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Solution

The fourth proportional to 6,845.40, 9,445.20 and 4,012.20 is: 5,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,845.40 : 9,445.20 = 4,012.20 : x
  2. Step 2: Convert to fraction form
    6,845.40/9,445.20 = 4,012.20/x
  3. Step 3: Cross multiply
    6,845.40x = 9,445.20 × 4,012.20
  4. Step 4: Simplify right side
    6,845.40x = 37,896,031.44
  5. Step 5: Solve for x
    x = 37,896,031.44/6,845.40
  6. Step 6: Final answer
    x = 5,535.98

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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.