Home / 9,917.44-13,686.08-5,725.69

Finding the Fourth Proportional to 9,917.44, 13,686.08 and 5,725.69

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Solution

The fourth proportional to 9,917.44, 13,686.08 and 5,725.69 is: 7,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.44 : 13,686.08 = 5,725.69 : x
  2. Step 2: Convert to fraction form
    9,917.44/13,686.08 = 5,725.69/x
  3. Step 3: Cross multiply
    9,917.44x = 13,686.08 × 5,725.69
  4. Step 4: Simplify right side
    9,917.44x = 78,362,188.55
  5. Step 5: Solve for x
    x = 78,362,188.55/9,917.44
  6. Step 6: Final answer
    x = 7,901.46

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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.