Home / 13,358.58-18,431.73-8,053.62

Finding the Fourth Proportional to 13,358.58, 18,431.73 and 8,053.62

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Solution

The fourth proportional to 13,358.58, 18,431.73 and 8,053.62 is: 11,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.58 : 18,431.73 = 8,053.62 : x
  2. Step 2: Convert to fraction form
    13,358.58/18,431.73 = 8,053.62/x
  3. Step 3: Cross multiply
    13,358.58x = 18,431.73 × 8,053.62
  4. Step 4: Simplify right side
    13,358.58x = 148,442,149.36
  5. Step 5: Solve for x
    x = 148,442,149.36/13,358.58
  6. Step 6: Final answer
    x = 11,112.12

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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.