Home / 6,990.14-9,646.39-4,005.83

Finding the Fourth Proportional to 6,990.14, 9,646.39 and 4,005.83

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Solution

The fourth proportional to 6,990.14, 9,646.39 and 4,005.83 is: 5,528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.14 : 9,646.39 = 4,005.83 : x
  2. Step 2: Convert to fraction form
    6,990.14/9,646.39 = 4,005.83/x
  3. Step 3: Cross multiply
    6,990.14x = 9,646.39 × 4,005.83
  4. Step 4: Simplify right side
    6,990.14x = 38,641,827.58
  5. Step 5: Solve for x
    x = 38,641,827.58/6,990.14
  6. Step 6: Final answer
    x = 5,528.05

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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.