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Finding the Fourth Proportional to 8,485.04, 11,709.88 and 5,647.52

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Solution

The fourth proportional to 8,485.04, 11,709.88 and 5,647.52 is: 7,793.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.04 : 11,709.88 = 5,647.52 : x
  2. Step 2: Convert to fraction form
    8,485.04/11,709.88 = 5,647.52/x
  3. Step 3: Cross multiply
    8,485.04x = 11,709.88 × 5,647.52
  4. Step 4: Simplify right side
    8,485.04x = 66,131,781.50
  5. Step 5: Solve for x
    x = 66,131,781.50/8,485.04
  6. Step 6: Final answer
    x = 7,793.93

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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.