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Finding the Fourth Proportional to 8,537.56, 12,804.16 and 2,990.32

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Solution

The fourth proportional to 8,537.56, 12,804.16 and 2,990.32 is: 4,484.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,537.56 : 12,804.16 = 2,990.32 : x
  2. Step 2: Convert to fraction form
    8,537.56/12,804.16 = 2,990.32/x
  3. Step 3: Cross multiply
    8,537.56x = 12,804.16 × 2,990.32
  4. Step 4: Simplify right side
    8,537.56x = 38,288,535.73
  5. Step 5: Solve for x
    x = 38,288,535.73/8,537.56
  6. Step 6: Final answer
    x = 4,484.72

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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.