Home / 12,912.93-19,364.54-10,171.89

Finding the Fourth Proportional to 12,912.93, 19,364.54 and 10,171.89

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Solution

The fourth proportional to 12,912.93, 19,364.54 and 10,171.89 is: 15,254.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.93 : 19,364.54 = 10,171.89 : x
  2. Step 2: Convert to fraction form
    12,912.93/19,364.54 = 10,171.89/x
  3. Step 3: Cross multiply
    12,912.93x = 19,364.54 × 10,171.89
  4. Step 4: Simplify right side
    12,912.93x = 196,973,919.92
  5. Step 5: Solve for x
    x = 196,973,919.92/12,912.93
  6. Step 6: Final answer
    x = 15,254.01

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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.