Home / 6,790.30-10,139.46-5,387.88

Finding the Fourth Proportional to 6,790.30, 10,139.46 and 5,387.88

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Solution

The fourth proportional to 6,790.30, 10,139.46 and 5,387.88 is: 8,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.30 : 10,139.46 = 5,387.88 : x
  2. Step 2: Convert to fraction form
    6,790.30/10,139.46 = 5,387.88/x
  3. Step 3: Cross multiply
    6,790.30x = 10,139.46 × 5,387.88
  4. Step 4: Simplify right side
    6,790.30x = 54,630,241.87
  5. Step 5: Solve for x
    x = 54,630,241.87/6,790.30
  6. Step 6: Final answer
    x = 8,045.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.