Home / 15,409.54-21,265.16-8,335.96

Finding the Fourth Proportional to 15,409.54, 21,265.16 and 8,335.96

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Solution

The fourth proportional to 15,409.54, 21,265.16 and 8,335.96 is: 11,503.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.54 : 21,265.16 = 8,335.96 : x
  2. Step 2: Convert to fraction form
    15,409.54/21,265.16 = 8,335.96/x
  3. Step 3: Cross multiply
    15,409.54x = 21,265.16 × 8,335.96
  4. Step 4: Simplify right side
    15,409.54x = 177,265,571.37
  5. Step 5: Solve for x
    x = 177,265,571.37/15,409.54
  6. Step 6: Final answer
    x = 11,503.62

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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.