Home / 8,485.48-11,699.23-7,049.59

Finding the Fourth Proportional to 8,485.48, 11,699.23 and 7,049.59

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Solution

The fourth proportional to 8,485.48, 11,699.23 and 7,049.59 is: 9,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.48 : 11,699.23 = 7,049.59 : x
  2. Step 2: Convert to fraction form
    8,485.48/11,699.23 = 7,049.59/x
  3. Step 3: Cross multiply
    8,485.48x = 11,699.23 × 7,049.59
  4. Step 4: Simplify right side
    8,485.48x = 82,474,774.82
  5. Step 5: Solve for x
    x = 82,474,774.82/8,485.48
  6. Step 6: Final answer
    x = 9,719.52

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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.