Home / 12,888.09-19,327.43-5,493.30

Finding the Fourth Proportional to 12,888.09, 19,327.43 and 5,493.30

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Solution

The fourth proportional to 12,888.09, 19,327.43 and 5,493.30 is: 8,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.09 : 19,327.43 = 5,493.30 : x
  2. Step 2: Convert to fraction form
    12,888.09/19,327.43 = 5,493.30/x
  3. Step 3: Cross multiply
    12,888.09x = 19,327.43 × 5,493.30
  4. Step 4: Simplify right side
    12,888.09x = 106,171,343.75
  5. Step 5: Solve for x
    x = 106,171,343.75/12,888.09
  6. Step 6: Final answer
    x = 8,237.94

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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.