Home / 13,790.59-19,032.41-8,127.09

Finding the Fourth Proportional to 13,790.59, 19,032.41 and 8,127.09

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Solution

The fourth proportional to 13,790.59, 19,032.41 and 8,127.09 is: 11,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.59 : 19,032.41 = 8,127.09 : x
  2. Step 2: Convert to fraction form
    13,790.59/19,032.41 = 8,127.09/x
  3. Step 3: Cross multiply
    13,790.59x = 19,032.41 × 8,127.09
  4. Step 4: Simplify right side
    13,790.59x = 154,678,129.30
  5. Step 5: Solve for x
    x = 154,678,129.30/13,790.59
  6. Step 6: Final answer
    x = 11,216.21

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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.