Home / 7,448.20-10,278.11-4,091.47

Finding the Fourth Proportional to 7,448.20, 10,278.11 and 4,091.47

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Solution

The fourth proportional to 7,448.20, 10,278.11 and 4,091.47 is: 5,646.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.20 : 10,278.11 = 4,091.47 : x
  2. Step 2: Convert to fraction form
    7,448.20/10,278.11 = 4,091.47/x
  3. Step 3: Cross multiply
    7,448.20x = 10,278.11 × 4,091.47
  4. Step 4: Simplify right side
    7,448.20x = 42,052,563.26
  5. Step 5: Solve for x
    x = 42,052,563.26/7,448.20
  6. Step 6: Final answer
    x = 5,646.01

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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.