Home / 10,986.76-15,157.96-6,267.64

Finding the Fourth Proportional to 10,986.76, 15,157.96 and 6,267.64

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Solution

The fourth proportional to 10,986.76, 15,157.96 and 6,267.64 is: 8,647.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.76 : 15,157.96 = 6,267.64 : x
  2. Step 2: Convert to fraction form
    10,986.76/15,157.96 = 6,267.64/x
  3. Step 3: Cross multiply
    10,986.76x = 15,157.96 × 6,267.64
  4. Step 4: Simplify right side
    10,986.76x = 95,004,636.41
  5. Step 5: Solve for x
    x = 95,004,636.41/10,986.76
  6. Step 6: Final answer
    x = 8,647.19

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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.