Home / 19,911.29-27,476.87-10,957.95

Finding the Fourth Proportional to 19,911.29, 27,476.87 and 10,957.95

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Solution

The fourth proportional to 19,911.29, 27,476.87 and 10,957.95 is: 15,121.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.29 : 27,476.87 = 10,957.95 : x
  2. Step 2: Convert to fraction form
    19,911.29/27,476.87 = 10,957.95/x
  3. Step 3: Cross multiply
    19,911.29x = 27,476.87 × 10,957.95
  4. Step 4: Simplify right side
    19,911.29x = 301,090,112.83
  5. Step 5: Solve for x
    x = 301,090,112.83/19,911.29
  6. Step 6: Final answer
    x = 15,121.58

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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.