Home / 11,420.22-17,130.15-3,628.92

Finding the Fourth Proportional to 11,420.22, 17,130.15 and 3,628.92

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Solution

The fourth proportional to 11,420.22, 17,130.15 and 3,628.92 is: 5,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.22 : 17,130.15 = 3,628.92 : x
  2. Step 2: Convert to fraction form
    11,420.22/17,130.15 = 3,628.92/x
  3. Step 3: Cross multiply
    11,420.22x = 17,130.15 × 3,628.92
  4. Step 4: Simplify right side
    11,420.22x = 62,163,943.94
  5. Step 5: Solve for x
    x = 62,163,943.94/11,420.22
  6. Step 6: Final answer
    x = 5,443.32

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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.