Home / 7,621.36-11,436.38-4,111.34

Finding the Fourth Proportional to 7,621.36, 11,436.38 and 4,111.34

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Solution

The fourth proportional to 7,621.36, 11,436.38 and 4,111.34 is: 6,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.36 : 11,436.38 = 4,111.34 : x
  2. Step 2: Convert to fraction form
    7,621.36/11,436.38 = 4,111.34/x
  3. Step 3: Cross multiply
    7,621.36x = 11,436.38 × 4,111.34
  4. Step 4: Simplify right side
    7,621.36x = 47,018,846.55
  5. Step 5: Solve for x
    x = 47,018,846.55/7,621.36
  6. Step 6: Final answer
    x = 6,169.35

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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.