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Finding the Fourth Proportional to 8,620.83, 12,925.85 and 6,554.25

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Solution

The fourth proportional to 8,620.83, 12,925.85 and 6,554.25 is: 9,827.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.83 : 12,925.85 = 6,554.25 : x
  2. Step 2: Convert to fraction form
    8,620.83/12,925.85 = 6,554.25/x
  3. Step 3: Cross multiply
    8,620.83x = 12,925.85 × 6,554.25
  4. Step 4: Simplify right side
    8,620.83x = 84,719,219.59
  5. Step 5: Solve for x
    x = 84,719,219.59/8,620.83
  6. Step 6: Final answer
    x = 9,827.27

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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.