Home / 9,187.32-12,678.60-4,995.57

Finding the Fourth Proportional to 9,187.32, 12,678.60 and 4,995.57

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Solution

The fourth proportional to 9,187.32, 12,678.60 and 4,995.57 is: 6,893.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.32 : 12,678.60 = 4,995.57 : x
  2. Step 2: Convert to fraction form
    9,187.32/12,678.60 = 4,995.57/x
  3. Step 3: Cross multiply
    9,187.32x = 12,678.60 × 4,995.57
  4. Step 4: Simplify right side
    9,187.32x = 63,336,833.80
  5. Step 5: Solve for x
    x = 63,336,833.80/9,187.32
  6. Step 6: Final answer
    x = 6,893.94

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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.