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Finding the Fourth Proportional to 8,322.81, 12,484.18 and 4,158.60

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Solution

The fourth proportional to 8,322.81, 12,484.18 and 4,158.60 is: 6,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.81 : 12,484.18 = 4,158.60 : x
  2. Step 2: Convert to fraction form
    8,322.81/12,484.18 = 4,158.60/x
  3. Step 3: Cross multiply
    8,322.81x = 12,484.18 × 4,158.60
  4. Step 4: Simplify right side
    8,322.81x = 51,916,710.95
  5. Step 5: Solve for x
    x = 51,916,710.95/8,322.81
  6. Step 6: Final answer
    x = 6,237.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.