Home / 19,477.65-26,872.71-10,978.73

Finding the Fourth Proportional to 19,477.65, 26,872.71 and 10,978.73

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Solution

The fourth proportional to 19,477.65, 26,872.71 and 10,978.73 is: 15,147.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,477.65 : 26,872.71 = 10,978.73 : x
  2. Step 2: Convert to fraction form
    19,477.65/26,872.71 = 10,978.73/x
  3. Step 3: Cross multiply
    19,477.65x = 26,872.71 × 10,978.73
  4. Step 4: Simplify right side
    19,477.65x = 295,028,093.09
  5. Step 5: Solve for x
    x = 295,028,093.09/19,477.65
  6. Step 6: Final answer
    x = 15,147.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.