Home / 11,110.20-15,305.67-7,746.90

Finding the Fourth Proportional to 11,110.20, 15,305.67 and 7,746.90

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Solution

The fourth proportional to 11,110.20, 15,305.67 and 7,746.90 is: 10,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.20 : 15,305.67 = 7,746.90 : x
  2. Step 2: Convert to fraction form
    11,110.20/15,305.67 = 7,746.90/x
  3. Step 3: Cross multiply
    11,110.20x = 15,305.67 × 7,746.90
  4. Step 4: Simplify right side
    11,110.20x = 118,571,494.92
  5. Step 5: Solve for x
    x = 118,571,494.92/11,110.20
  6. Step 6: Final answer
    x = 10,672.31

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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.