Home / 8,656.83-12,986.01-6,345.60

Finding the Fourth Proportional to 8,656.83, 12,986.01 and 6,345.60

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Solution

The fourth proportional to 8,656.83, 12,986.01 and 6,345.60 is: 9,518.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.83 : 12,986.01 = 6,345.60 : x
  2. Step 2: Convert to fraction form
    8,656.83/12,986.01 = 6,345.60/x
  3. Step 3: Cross multiply
    8,656.83x = 12,986.01 × 6,345.60
  4. Step 4: Simplify right side
    8,656.83x = 82,404,025.06
  5. Step 5: Solve for x
    x = 82,404,025.06/8,656.83
  6. Step 6: Final answer
    x = 9,518.96

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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.