Home / 10,653.61-15,982.72-4,079.80

Finding the Fourth Proportional to 10,653.61, 15,982.72 and 4,079.80

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Solution

The fourth proportional to 10,653.61, 15,982.72 and 4,079.80 is: 6,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.61 : 15,982.72 = 4,079.80 : x
  2. Step 2: Convert to fraction form
    10,653.61/15,982.72 = 4,079.80/x
  3. Step 3: Cross multiply
    10,653.61x = 15,982.72 × 4,079.80
  4. Step 4: Simplify right side
    10,653.61x = 65,206,236.23
  5. Step 5: Solve for x
    x = 65,206,236.23/10,653.61
  6. Step 6: Final answer
    x = 6,120.58

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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.