Home / 15,482.75-21,366.30-8,409.17

Finding the Fourth Proportional to 15,482.75, 21,366.30 and 8,409.17

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Solution

The fourth proportional to 15,482.75, 21,366.30 and 8,409.17 is: 11,604.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.75 : 21,366.30 = 8,409.17 : x
  2. Step 2: Convert to fraction form
    15,482.75/21,366.30 = 8,409.17/x
  3. Step 3: Cross multiply
    15,482.75x = 21,366.30 × 8,409.17
  4. Step 4: Simplify right side
    15,482.75x = 179,672,848.97
  5. Step 5: Solve for x
    x = 179,672,848.97/15,482.75
  6. Step 6: Final answer
    x = 11,604.71

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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.