Home / 7,956.48-11,945.58-5,485.20

Finding the Fourth Proportional to 7,956.48, 11,945.58 and 5,485.20

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Solution

The fourth proportional to 7,956.48, 11,945.58 and 5,485.20 is: 8,235.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.48 : 11,945.58 = 5,485.20 : x
  2. Step 2: Convert to fraction form
    7,956.48/11,945.58 = 5,485.20/x
  3. Step 3: Cross multiply
    7,956.48x = 11,945.58 × 5,485.20
  4. Step 4: Simplify right side
    7,956.48x = 65,523,895.42
  5. Step 5: Solve for x
    x = 65,523,895.42/7,956.48
  6. Step 6: Final answer
    x = 8,235.29

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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.