Home / 6,624.08-9,121.20-6,478.28

Finding the Fourth Proportional to 6,624.08, 9,121.20 and 6,478.28

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Solution

The fourth proportional to 6,624.08, 9,121.20 and 6,478.28 is: 8,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.08 : 9,121.20 = 6,478.28 : x
  2. Step 2: Convert to fraction form
    6,624.08/9,121.20 = 6,478.28/x
  3. Step 3: Cross multiply
    6,624.08x = 9,121.20 × 6,478.28
  4. Step 4: Simplify right side
    6,624.08x = 59,089,687.54
  5. Step 5: Solve for x
    x = 59,089,687.54/6,624.08
  6. Step 6: Final answer
    x = 8,920.44

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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.