Home / 12,840.05-19,262.10-5,444.55

Finding the Fourth Proportional to 12,840.05, 19,262.10 and 5,444.55

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Solution

The fourth proportional to 12,840.05, 19,262.10 and 5,444.55 is: 8,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.05 : 19,262.10 = 5,444.55 : x
  2. Step 2: Convert to fraction form
    12,840.05/19,262.10 = 5,444.55/x
  3. Step 3: Cross multiply
    12,840.05x = 19,262.10 × 5,444.55
  4. Step 4: Simplify right side
    12,840.05x = 104,873,486.97
  5. Step 5: Solve for x
    x = 104,873,486.97/12,840.05
  6. Step 6: Final answer
    x = 8,167.68

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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.