Home / 10,721.54-14,790.78-6,945.97

Finding the Fourth Proportional to 10,721.54, 14,790.78 and 6,945.97

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Solution

The fourth proportional to 10,721.54, 14,790.78 and 6,945.97 is: 9,582.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.54 : 14,790.78 = 6,945.97 : x
  2. Step 2: Convert to fraction form
    10,721.54/14,790.78 = 6,945.97/x
  3. Step 3: Cross multiply
    10,721.54x = 14,790.78 × 6,945.97
  4. Step 4: Simplify right side
    10,721.54x = 102,736,314.16
  5. Step 5: Solve for x
    x = 102,736,314.16/10,721.54
  6. Step 6: Final answer
    x = 9,582.23

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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.