Home / 6,990.10-9,645.24-4,005.36

Finding the Fourth Proportional to 6,990.10, 9,645.24 and 4,005.36

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Solution

The fourth proportional to 6,990.10, 9,645.24 and 4,005.36 is: 5,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.10 : 9,645.24 = 4,005.36 : x
  2. Step 2: Convert to fraction form
    6,990.10/9,645.24 = 4,005.36/x
  3. Step 3: Cross multiply
    6,990.10x = 9,645.24 × 4,005.36
  4. Step 4: Simplify right side
    6,990.10x = 38,632,658.49
  5. Step 5: Solve for x
    x = 38,632,658.49/6,990.10
  6. Step 6: Final answer
    x = 5,526.77

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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.