Home / 15,409.46-21,265.04-8,335.86

Finding the Fourth Proportional to 15,409.46, 21,265.04 and 8,335.86

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Solution

The fourth proportional to 15,409.46, 21,265.04 and 8,335.86 is: 11,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.46 : 21,265.04 = 8,335.86 : x
  2. Step 2: Convert to fraction form
    15,409.46/21,265.04 = 8,335.86/x
  3. Step 3: Cross multiply
    15,409.46x = 21,265.04 × 8,335.86
  4. Step 4: Simplify right side
    15,409.46x = 177,262,354.66
  5. Step 5: Solve for x
    x = 177,262,354.66/15,409.46
  6. Step 6: Final answer
    x = 11,503.48

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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.