Home / 19,477.47-26,876.97-10,979.40

Finding the Fourth Proportional to 19,477.47, 26,876.97 and 10,979.40

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Solution

The fourth proportional to 19,477.47, 26,876.97 and 10,979.40 is: 15,150.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,477.47 : 26,876.97 = 10,979.40 : x
  2. Step 2: Convert to fraction form
    19,477.47/26,876.97 = 10,979.40/x
  3. Step 3: Cross multiply
    19,477.47x = 26,876.97 × 10,979.40
  4. Step 4: Simplify right side
    19,477.47x = 295,093,004.42
  5. Step 5: Solve for x
    x = 295,093,004.42/19,477.47
  6. Step 6: Final answer
    x = 15,150.48

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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.