Home / 8,485.18-11,712.62-5,509.04

Finding the Fourth Proportional to 8,485.18, 11,712.62 and 5,509.04

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Solution

The fourth proportional to 8,485.18, 11,712.62 and 5,509.04 is: 7,604.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.18 : 11,712.62 = 5,509.04 : x
  2. Step 2: Convert to fraction form
    8,485.18/11,712.62 = 5,509.04/x
  3. Step 3: Cross multiply
    8,485.18x = 11,712.62 × 5,509.04
  4. Step 4: Simplify right side
    8,485.18x = 64,525,292.08
  5. Step 5: Solve for x
    x = 64,525,292.08/8,485.18
  6. Step 6: Final answer
    x = 7,604.47

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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.