Home / 6,990.08-9,646.72-4,628.08

Finding the Fourth Proportional to 6,990.08, 9,646.72 and 4,628.08

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Solution

The fourth proportional to 6,990.08, 9,646.72 and 4,628.08 is: 6,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.08 : 9,646.72 = 4,628.08 : x
  2. Step 2: Convert to fraction form
    6,990.08/9,646.72 = 4,628.08/x
  3. Step 3: Cross multiply
    6,990.08x = 9,646.72 × 4,628.08
  4. Step 4: Simplify right side
    6,990.08x = 44,645,791.90
  5. Step 5: Solve for x
    x = 44,645,791.90/6,990.08
  6. Step 6: Final answer
    x = 6,387.02

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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.