Home / 13,790.45-19,032.23-8,126.97

Finding the Fourth Proportional to 13,790.45, 19,032.23 and 8,126.97

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Solution

The fourth proportional to 13,790.45, 19,032.23 and 8,126.97 is: 11,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.45 : 19,032.23 = 8,126.97 : x
  2. Step 2: Convert to fraction form
    13,790.45/19,032.23 = 8,126.97/x
  3. Step 3: Cross multiply
    13,790.45x = 19,032.23 × 8,126.97
  4. Step 4: Simplify right side
    13,790.45x = 154,674,362.24
  5. Step 5: Solve for x
    x = 154,674,362.24/13,790.45
  6. Step 6: Final answer
    x = 11,216.05

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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.