Home / 9,375.48-12,939.73-5,395.84

Finding the Fourth Proportional to 9,375.48, 12,939.73 and 5,395.84

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Solution

The fourth proportional to 9,375.48, 12,939.73 and 5,395.84 is: 7,447.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,375.48 : 12,939.73 = 5,395.84 : x
  2. Step 2: Convert to fraction form
    9,375.48/12,939.73 = 5,395.84/x
  3. Step 3: Cross multiply
    9,375.48x = 12,939.73 × 5,395.84
  4. Step 4: Simplify right side
    9,375.48x = 69,820,666.88
  5. Step 5: Solve for x
    x = 69,820,666.88/9,375.48
  6. Step 6: Final answer
    x = 7,447.16

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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.