Home / 11,166.24-15,406.40-6,385.19

Finding the Fourth Proportional to 11,166.24, 15,406.40 and 6,385.19

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Solution

The fourth proportional to 11,166.24, 15,406.40 and 6,385.19 is: 8,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.24 : 15,406.40 = 6,385.19 : x
  2. Step 2: Convert to fraction form
    11,166.24/15,406.40 = 6,385.19/x
  3. Step 3: Cross multiply
    11,166.24x = 15,406.40 × 6,385.19
  4. Step 4: Simplify right side
    11,166.24x = 98,372,854.87
  5. Step 5: Solve for x
    x = 98,372,854.87/11,166.24
  6. Step 6: Final answer
    x = 8,809.85

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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.