Home / 11,328.59-15,630.21-6,849.09

Finding the Fourth Proportional to 11,328.59, 15,630.21 and 6,849.09

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Solution

The fourth proportional to 11,328.59, 15,630.21 and 6,849.09 is: 9,449.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.59 : 15,630.21 = 6,849.09 : x
  2. Step 2: Convert to fraction form
    11,328.59/15,630.21 = 6,849.09/x
  3. Step 3: Cross multiply
    11,328.59x = 15,630.21 × 6,849.09
  4. Step 4: Simplify right side
    11,328.59x = 107,052,715.01
  5. Step 5: Solve for x
    x = 107,052,715.01/11,328.59
  6. Step 6: Final answer
    x = 9,449.79

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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.