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Finding the Fourth Proportional to 8,555.03, 12,840.62 and 4,397.96

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Solution

The fourth proportional to 8,555.03, 12,840.62 and 4,397.96 is: 6,601.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.03 : 12,840.62 = 4,397.96 : x
  2. Step 2: Convert to fraction form
    8,555.03/12,840.62 = 4,397.96/x
  3. Step 3: Cross multiply
    8,555.03x = 12,840.62 × 4,397.96
  4. Step 4: Simplify right side
    8,555.03x = 56,472,533.14
  5. Step 5: Solve for x
    x = 56,472,533.14/8,555.03
  6. Step 6: Final answer
    x = 6,601.09

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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.