Home / 8,405.07-12,609.63-2,561.32

Finding the Fourth Proportional to 8,405.07, 12,609.63 and 2,561.32

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Solution

The fourth proportional to 8,405.07, 12,609.63 and 2,561.32 is: 3,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.07 : 12,609.63 = 2,561.32 : x
  2. Step 2: Convert to fraction form
    8,405.07/12,609.63 = 2,561.32/x
  3. Step 3: Cross multiply
    8,405.07x = 12,609.63 × 2,561.32
  4. Step 4: Simplify right side
    8,405.07x = 32,297,284.71
  5. Step 5: Solve for x
    x = 32,297,284.71/8,405.07
  6. Step 6: Final answer
    x = 3,842.60

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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.