Home / 11,039.80-16,538.10-6,644.20

Finding the Fourth Proportional to 11,039.80, 16,538.10 and 6,644.20

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Solution

The fourth proportional to 11,039.80, 16,538.10 and 6,644.20 is: 9,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,039.80 : 16,538.10 = 6,644.20 : x
  2. Step 2: Convert to fraction form
    11,039.80/16,538.10 = 6,644.20/x
  3. Step 3: Cross multiply
    11,039.80x = 16,538.10 × 6,644.20
  4. Step 4: Simplify right side
    11,039.80x = 109,882,444.02
  5. Step 5: Solve for x
    x = 109,882,444.02/11,039.80
  6. Step 6: Final answer
    x = 9,953.30

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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.