Home / 8,103.13-11,178.35-5,415.01

Finding the Fourth Proportional to 8,103.13, 11,178.35 and 5,415.01

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Solution

The fourth proportional to 8,103.13, 11,178.35 and 5,415.01 is: 7,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.13 : 11,178.35 = 5,415.01 : x
  2. Step 2: Convert to fraction form
    8,103.13/11,178.35 = 5,415.01/x
  3. Step 3: Cross multiply
    8,103.13x = 11,178.35 × 5,415.01
  4. Step 4: Simplify right side
    8,103.13x = 60,530,846.37
  5. Step 5: Solve for x
    x = 60,530,846.37/8,103.13
  6. Step 6: Final answer
    x = 7,470.06

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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.