Home / 9,990.44-13,779.66-7,006.94

Finding the Fourth Proportional to 9,990.44, 13,779.66 and 7,006.94

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Solution

The fourth proportional to 9,990.44, 13,779.66 and 7,006.94 is: 9,664.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.44 : 13,779.66 = 7,006.94 : x
  2. Step 2: Convert to fraction form
    9,990.44/13,779.66 = 7,006.94/x
  3. Step 3: Cross multiply
    9,990.44x = 13,779.66 × 7,006.94
  4. Step 4: Simplify right side
    9,990.44x = 96,553,250.84
  5. Step 5: Solve for x
    x = 96,553,250.84/9,990.44
  6. Step 6: Final answer
    x = 9,664.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.