Home / 12,823.12-19,236.69-5,427.64

Finding the Fourth Proportional to 12,823.12, 19,236.69 and 5,427.64

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Solution

The fourth proportional to 12,823.12, 19,236.69 and 5,427.64 is: 8,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,823.12 : 19,236.69 = 5,427.64 : x
  2. Step 2: Convert to fraction form
    12,823.12/19,236.69 = 5,427.64/x
  3. Step 3: Cross multiply
    12,823.12x = 19,236.69 × 5,427.64
  4. Step 4: Simplify right side
    12,823.12x = 104,409,828.11
  5. Step 5: Solve for x
    x = 104,409,828.11/12,823.12
  6. Step 6: Final answer
    x = 8,142.31

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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.