Home / 10,790.76-14,883.30-8,138.28

Finding the Fourth Proportional to 10,790.76, 14,883.30 and 8,138.28

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Solution

The fourth proportional to 10,790.76, 14,883.30 and 8,138.28 is: 11,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.76 : 14,883.30 = 8,138.28 : x
  2. Step 2: Convert to fraction form
    10,790.76/14,883.30 = 8,138.28/x
  3. Step 3: Cross multiply
    10,790.76x = 14,883.30 × 8,138.28
  4. Step 4: Simplify right side
    10,790.76x = 121,124,462.72
  5. Step 5: Solve for x
    x = 121,124,462.72/10,790.76
  6. Step 6: Final answer
    x = 11,224.83

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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.