Home / 7,422.30-11,135.52-4,137.72

Finding the Fourth Proportional to 7,422.30, 11,135.52 and 4,137.72

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Solution

The fourth proportional to 7,422.30, 11,135.52 and 4,137.72 is: 6,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.30 : 11,135.52 = 4,137.72 : x
  2. Step 2: Convert to fraction form
    7,422.30/11,135.52 = 4,137.72/x
  3. Step 3: Cross multiply
    7,422.30x = 11,135.52 × 4,137.72
  4. Step 4: Simplify right side
    7,422.30x = 46,075,663.81
  5. Step 5: Solve for x
    x = 46,075,663.81/7,422.30
  6. Step 6: Final answer
    x = 6,207.73

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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.