Home / 11,443.77-15,790.59-6,408.21

Finding the Fourth Proportional to 11,443.77, 15,790.59 and 6,408.21

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Solution

The fourth proportional to 11,443.77, 15,790.59 and 6,408.21 is: 8,842.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,443.77 : 15,790.59 = 6,408.21 : x
  2. Step 2: Convert to fraction form
    11,443.77/15,790.59 = 6,408.21/x
  3. Step 3: Cross multiply
    11,443.77x = 15,790.59 × 6,408.21
  4. Step 4: Simplify right side
    11,443.77x = 101,189,416.74
  5. Step 5: Solve for x
    x = 101,189,416.74/11,443.77
  6. Step 6: Final answer
    x = 8,842.31

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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.