Home / 7,454.29-11,163.91-4,378.45

Finding the Fourth Proportional to 7,454.29, 11,163.91 and 4,378.45

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Solution

The fourth proportional to 7,454.29, 11,163.91 and 4,378.45 is: 6,557.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.29 : 11,163.91 = 4,378.45 : x
  2. Step 2: Convert to fraction form
    7,454.29/11,163.91 = 4,378.45/x
  3. Step 3: Cross multiply
    7,454.29x = 11,163.91 × 4,378.45
  4. Step 4: Simplify right side
    7,454.29x = 48,880,621.74
  5. Step 5: Solve for x
    x = 48,880,621.74/7,454.29
  6. Step 6: Final answer
    x = 6,557.38

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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.