Home / 10,912.55-16,343.91-6,521.00

Finding the Fourth Proportional to 10,912.55, 16,343.91 and 6,521.00

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Solution

The fourth proportional to 10,912.55, 16,343.91 and 6,521.00 is: 9,766.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.55 : 16,343.91 = 6,521.00 : x
  2. Step 2: Convert to fraction form
    10,912.55/16,343.91 = 6,521.00/x
  3. Step 3: Cross multiply
    10,912.55x = 16,343.91 × 6,521.00
  4. Step 4: Simplify right side
    10,912.55x = 106,578,555.39
  5. Step 5: Solve for x
    x = 106,578,555.39/10,912.55
  6. Step 6: Final answer
    x = 9,766.61

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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.