Home / 6,631.76-9,928.44-4,995.20

Finding the Fourth Proportional to 6,631.76, 9,928.44 and 4,995.20

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Solution

The fourth proportional to 6,631.76, 9,928.44 and 4,995.20 is: 7,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.76 : 9,928.44 = 4,995.20 : x
  2. Step 2: Convert to fraction form
    6,631.76/9,928.44 = 4,995.20/x
  3. Step 3: Cross multiply
    6,631.76x = 9,928.44 × 4,995.20
  4. Step 4: Simplify right side
    6,631.76x = 49,594,543.49
  5. Step 5: Solve for x
    x = 49,594,543.49/6,631.76
  6. Step 6: Final answer
    x = 7,478.34

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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.