Home / 12,922.07-19,384.31-3,561.71

Finding the Fourth Proportional to 12,922.07, 19,384.31 and 3,561.71

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Solution

The fourth proportional to 12,922.07, 19,384.31 and 3,561.71 is: 5,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.07 : 19,384.31 = 3,561.71 : x
  2. Step 2: Convert to fraction form
    12,922.07/19,384.31 = 3,561.71/x
  3. Step 3: Cross multiply
    12,922.07x = 19,384.31 × 3,561.71
  4. Step 4: Simplify right side
    12,922.07x = 69,041,202.75
  5. Step 5: Solve for x
    x = 69,041,202.75/12,922.07
  6. Step 6: Final answer
    x = 5,342.89

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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.