Home / 8,405.24-12,607.86-2,561.84

Finding the Fourth Proportional to 8,405.24, 12,607.86 and 2,561.84

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Solution

The fourth proportional to 8,405.24, 12,607.86 and 2,561.84 is: 3,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.24 : 12,607.86 = 2,561.84 : x
  2. Step 2: Convert to fraction form
    8,405.24/12,607.86 = 2,561.84/x
  3. Step 3: Cross multiply
    8,405.24x = 12,607.86 × 2,561.84
  4. Step 4: Simplify right side
    8,405.24x = 32,299,320.06
  5. Step 5: Solve for x
    x = 32,299,320.06/8,405.24
  6. Step 6: Final answer
    x = 3,842.76

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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.