Home / 10,276.82-15,415.32-2,485.64

Finding the Fourth Proportional to 10,276.82, 15,415.32 and 2,485.64

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Solution

The fourth proportional to 10,276.82, 15,415.32 and 2,485.64 is: 3,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.82 : 15,415.32 = 2,485.64 : x
  2. Step 2: Convert to fraction form
    10,276.82/15,415.32 = 2,485.64/x
  3. Step 3: Cross multiply
    10,276.82x = 15,415.32 × 2,485.64
  4. Step 4: Simplify right side
    10,276.82x = 38,316,936.00
  5. Step 5: Solve for x
    x = 38,316,936.00/10,276.82
  6. Step 6: Final answer
    x = 3,728.48

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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.