Home / 8,208.12-11,325.42-4,670.76

Finding the Fourth Proportional to 8,208.12, 11,325.42 and 4,670.76

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Solution

The fourth proportional to 8,208.12, 11,325.42 and 4,670.76 is: 6,444.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.12 : 11,325.42 = 4,670.76 : x
  2. Step 2: Convert to fraction form
    8,208.12/11,325.42 = 4,670.76/x
  3. Step 3: Cross multiply
    8,208.12x = 11,325.42 × 4,670.76
  4. Step 4: Simplify right side
    8,208.12x = 52,898,318.72
  5. Step 5: Solve for x
    x = 52,898,318.72/8,208.12
  6. Step 6: Final answer
    x = 6,444.63

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Half scale
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Double scale
Find fourth proportional to 8,209.12, 11,326.80 and 4,671.76
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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.