Home / 6,913.90-10,359.45-3,987.10

Finding the Fourth Proportional to 6,913.90, 10,359.45 and 3,987.10

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Solution

The fourth proportional to 6,913.90, 10,359.45 and 3,987.10 is: 5,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913.90 : 10,359.45 = 3,987.10 : x
  2. Step 2: Convert to fraction form
    6,913.90/10,359.45 = 3,987.10/x
  3. Step 3: Cross multiply
    6,913.90x = 10,359.45 × 3,987.10
  4. Step 4: Simplify right side
    6,913.90x = 41,304,163.10
  5. Step 5: Solve for x
    x = 41,304,163.10/6,913.90
  6. Step 6: Final answer
    x = 5,974.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.