Home / 7,415.24-11,112.48-4,919.36

Finding the Fourth Proportional to 7,415.24, 11,112.48 and 4,919.36

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Solution

The fourth proportional to 7,415.24, 11,112.48 and 4,919.36 is: 7,372.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.24 : 11,112.48 = 4,919.36 : x
  2. Step 2: Convert to fraction form
    7,415.24/11,112.48 = 4,919.36/x
  3. Step 3: Cross multiply
    7,415.24x = 11,112.48 × 4,919.36
  4. Step 4: Simplify right side
    7,415.24x = 54,666,289.61
  5. Step 5: Solve for x
    x = 54,666,289.61/7,415.24
  6. Step 6: Final answer
    x = 7,372.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.