Home / 10,728.06-16,085.70-4,148.88

Finding the Fourth Proportional to 10,728.06, 16,085.70 and 4,148.88

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Solution

The fourth proportional to 10,728.06, 16,085.70 and 4,148.88 is: 6,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728.06 : 16,085.70 = 4,148.88 : x
  2. Step 2: Convert to fraction form
    10,728.06/16,085.70 = 4,148.88/x
  3. Step 3: Cross multiply
    10,728.06x = 16,085.70 × 4,148.88
  4. Step 4: Simplify right side
    10,728.06x = 66,737,639.02
  5. Step 5: Solve for x
    x = 66,737,639.02/10,728.06
  6. Step 6: Final answer
    x = 6,220.85

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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.