Home / 10,790.36-14,895.06-8,138.42

Finding the Fourth Proportional to 10,790.36, 14,895.06 and 8,138.42

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Solution

The fourth proportional to 10,790.36, 14,895.06 and 8,138.42 is: 11,234.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.36 : 14,895.06 = 8,138.42 : x
  2. Step 2: Convert to fraction form
    10,790.36/14,895.06 = 8,138.42/x
  3. Step 3: Cross multiply
    10,790.36x = 14,895.06 × 8,138.42
  4. Step 4: Simplify right side
    10,790.36x = 121,222,254.21
  5. Step 5: Solve for x
    x = 121,222,254.21/10,790.36
  6. Step 6: Final answer
    x = 11,234.31

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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.