Home / 13,490.08-18,615.82-7,522

Finding the Fourth Proportional to 13,490.08, 18,615.82 and 7,522

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Solution

The fourth proportional to 13,490.08, 18,615.82 and 7,522 is: 10,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.08 : 18,615.82 = 7,522 : x
  2. Step 2: Convert to fraction form
    13,490.08/18,615.82 = 7,522/x
  3. Step 3: Cross multiply
    13,490.08x = 18,615.82 × 7,522
  4. Step 4: Simplify right side
    13,490.08x = 140,028,198.04
  5. Step 5: Solve for x
    x = 140,028,198.04/13,490.08
  6. Step 6: Final answer
    x = 10,380.09

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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.