Home / 12,771.68-19,158.73-5,374.76

Finding the Fourth Proportional to 12,771.68, 19,158.73 and 5,374.76

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Solution

The fourth proportional to 12,771.68, 19,158.73 and 5,374.76 is: 8,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.68 : 19,158.73 = 5,374.76 : x
  2. Step 2: Convert to fraction form
    12,771.68/19,158.73 = 5,374.76/x
  3. Step 3: Cross multiply
    12,771.68x = 19,158.73 × 5,374.76
  4. Step 4: Simplify right side
    12,771.68x = 102,973,466.42
  5. Step 5: Solve for x
    x = 102,973,466.42/12,771.68
  6. Step 6: Final answer
    x = 8,062.64

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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.