Home / 9,188.79-13,776.39-2,945.18

Finding the Fourth Proportional to 9,188.79, 13,776.39 and 2,945.18

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Solution

The fourth proportional to 9,188.79, 13,776.39 and 2,945.18 is: 4,415.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.79 : 13,776.39 = 2,945.18 : x
  2. Step 2: Convert to fraction form
    9,188.79/13,776.39 = 2,945.18/x
  3. Step 3: Cross multiply
    9,188.79x = 13,776.39 × 2,945.18
  4. Step 4: Simplify right side
    9,188.79x = 40,573,879.42
  5. Step 5: Solve for x
    x = 40,573,879.42/9,188.79
  6. Step 6: Final answer
    x = 4,415.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.