Home / 9,477.06-13,078.40-5,500.54

Finding the Fourth Proportional to 9,477.06, 13,078.40 and 5,500.54

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Solution

The fourth proportional to 9,477.06, 13,078.40 and 5,500.54 is: 7,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,477.06 : 13,078.40 = 5,500.54 : x
  2. Step 2: Convert to fraction form
    9,477.06/13,078.40 = 5,500.54/x
  3. Step 3: Cross multiply
    9,477.06x = 13,078.40 × 5,500.54
  4. Step 4: Simplify right side
    9,477.06x = 71,938,262.34
  5. Step 5: Solve for x
    x = 71,938,262.34/9,477.06
  6. Step 6: Final answer
    x = 7,590.78

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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.