Home / 10,878.92-16,325.66-6,986.06

Finding the Fourth Proportional to 10,878.92, 16,325.66 and 6,986.06

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Solution

The fourth proportional to 10,878.92, 16,325.66 and 6,986.06 is: 10,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,878.92 : 16,325.66 = 6,986.06 : x
  2. Step 2: Convert to fraction form
    10,878.92/16,325.66 = 6,986.06/x
  3. Step 3: Cross multiply
    10,878.92x = 16,325.66 × 6,986.06
  4. Step 4: Simplify right side
    10,878.92x = 114,051,976.14
  5. Step 5: Solve for x
    x = 114,051,976.14/10,878.92
  6. Step 6: Final answer
    x = 10,483.76

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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.