Home / 9,213.77-12,715.35-5,235.56

Finding the Fourth Proportional to 9,213.77, 12,715.35 and 5,235.56

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Solution

The fourth proportional to 9,213.77, 12,715.35 and 5,235.56 is: 7,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.77 : 12,715.35 = 5,235.56 : x
  2. Step 2: Convert to fraction form
    9,213.77/12,715.35 = 5,235.56/x
  3. Step 3: Cross multiply
    9,213.77x = 12,715.35 × 5,235.56
  4. Step 4: Simplify right side
    9,213.77x = 66,571,977.85
  5. Step 5: Solve for x
    x = 66,571,977.85/9,213.77
  6. Step 6: Final answer
    x = 7,225.27

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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.