Home / 7,945.80-10,940.28-6,748.32

Finding the Fourth Proportional to 7,945.80, 10,940.28 and 6,748.32

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Solution

The fourth proportional to 7,945.80, 10,940.28 and 6,748.32 is: 9,291.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.80 : 10,940.28 = 6,748.32 : x
  2. Step 2: Convert to fraction form
    7,945.80/10,940.28 = 6,748.32/x
  3. Step 3: Cross multiply
    7,945.80x = 10,940.28 × 6,748.32
  4. Step 4: Simplify right side
    7,945.80x = 73,828,510.33
  5. Step 5: Solve for x
    x = 73,828,510.33/7,945.80
  6. Step 6: Final answer
    x = 9,291.51

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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.