Home / 9,187.39-12,678.57-4,995.64

Finding the Fourth Proportional to 9,187.39, 12,678.57 and 4,995.64

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Solution

The fourth proportional to 9,187.39, 12,678.57 and 4,995.64 is: 6,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.39 : 12,678.57 = 4,995.64 : x
  2. Step 2: Convert to fraction form
    9,187.39/12,678.57 = 4,995.64/x
  3. Step 3: Cross multiply
    9,187.39x = 12,678.57 × 4,995.64
  4. Step 4: Simplify right side
    9,187.39x = 63,337,571.43
  5. Step 5: Solve for x
    x = 63,337,571.43/9,187.39
  6. Step 6: Final answer
    x = 6,893.97

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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.