Home / 6,653.20-9,990.60-4,817.20

Finding the Fourth Proportional to 6,653.20, 9,990.60 and 4,817.20

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Solution

The fourth proportional to 6,653.20, 9,990.60 and 4,817.20 is: 7,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.20 : 9,990.60 = 4,817.20 : x
  2. Step 2: Convert to fraction form
    6,653.20/9,990.60 = 4,817.20/x
  3. Step 3: Cross multiply
    6,653.20x = 9,990.60 × 4,817.20
  4. Step 4: Simplify right side
    6,653.20x = 48,126,718.32
  5. Step 5: Solve for x
    x = 48,126,718.32/6,653.20
  6. Step 6: Final answer
    x = 7,233.62

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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.