Home / 12,415.84-18,625.68-5,842.72

Finding the Fourth Proportional to 12,415.84, 18,625.68 and 5,842.72

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Solution

The fourth proportional to 12,415.84, 18,625.68 and 5,842.72 is: 8,764.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.84 : 18,625.68 = 5,842.72 : x
  2. Step 2: Convert to fraction form
    12,415.84/18,625.68 = 5,842.72/x
  3. Step 3: Cross multiply
    12,415.84x = 18,625.68 × 5,842.72
  4. Step 4: Simplify right side
    12,415.84x = 108,824,633.05
  5. Step 5: Solve for x
    x = 108,824,633.05/12,415.84
  6. Step 6: Final answer
    x = 8,764.98

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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.