Home / 12,840.23-19,241.40-5,822.39

Finding the Fourth Proportional to 12,840.23, 19,241.40 and 5,822.39

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Solution

The fourth proportional to 12,840.23, 19,241.40 and 5,822.39 is: 8,724.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.23 : 19,241.40 = 5,822.39 : x
  2. Step 2: Convert to fraction form
    12,840.23/19,241.40 = 5,822.39/x
  3. Step 3: Cross multiply
    12,840.23x = 19,241.40 × 5,822.39
  4. Step 4: Simplify right side
    12,840.23x = 112,030,934.95
  5. Step 5: Solve for x
    x = 112,030,934.95/12,840.23
  6. Step 6: Final answer
    x = 8,724.99

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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.