Home / 11,904.45-16,429.67-7,819.74

Finding the Fourth Proportional to 11,904.45, 16,429.67 and 7,819.74

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Solution

The fourth proportional to 11,904.45, 16,429.67 and 7,819.74 is: 10,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.45 : 16,429.67 = 7,819.74 : x
  2. Step 2: Convert to fraction form
    11,904.45/16,429.67 = 7,819.74/x
  3. Step 3: Cross multiply
    11,904.45x = 16,429.67 × 7,819.74
  4. Step 4: Simplify right side
    11,904.45x = 128,475,708.59
  5. Step 5: Solve for x
    x = 128,475,708.59/11,904.45
  6. Step 6: Final answer
    x = 10,792.24

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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.