Home / 13,215.52-18,226.92-11,232.64

Finding the Fourth Proportional to 13,215.52, 18,226.92 and 11,232.64

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Solution

The fourth proportional to 13,215.52, 18,226.92 and 11,232.64 is: 15,492.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.52 : 18,226.92 = 11,232.64 : x
  2. Step 2: Convert to fraction form
    13,215.52/18,226.92 = 11,232.64/x
  3. Step 3: Cross multiply
    13,215.52x = 18,226.92 × 11,232.64
  4. Step 4: Simplify right side
    13,215.52x = 204,736,430.67
  5. Step 5: Solve for x
    x = 204,736,430.67/13,215.52
  6. Step 6: Final answer
    x = 15,492.12

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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.