Home / 7,939.37-10,943.55-5,386.29

Finding the Fourth Proportional to 7,939.37, 10,943.55 and 5,386.29

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Solution

The fourth proportional to 7,939.37, 10,943.55 and 5,386.29 is: 7,424.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.37 : 10,943.55 = 5,386.29 : x
  2. Step 2: Convert to fraction form
    7,939.37/10,943.55 = 5,386.29/x
  3. Step 3: Cross multiply
    7,939.37x = 10,943.55 × 5,386.29
  4. Step 4: Simplify right side
    7,939.37x = 58,945,133.93
  5. Step 5: Solve for x
    x = 58,945,133.93/7,939.37
  6. Step 6: Final answer
    x = 7,424.41

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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.