Home / 9,125.35-13,686.31-3,858.64

Finding the Fourth Proportional to 9,125.35, 13,686.31 and 3,858.64

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Solution

The fourth proportional to 9,125.35, 13,686.31 and 3,858.64 is: 5,787.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.35 : 13,686.31 = 3,858.64 : x
  2. Step 2: Convert to fraction form
    9,125.35/13,686.31 = 3,858.64/x
  3. Step 3: Cross multiply
    9,125.35x = 13,686.31 × 3,858.64
  4. Step 4: Simplify right side
    9,125.35x = 52,810,543.22
  5. Step 5: Solve for x
    x = 52,810,543.22/9,125.35
  6. Step 6: Final answer
    x = 5,787.23

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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.