Home / 11,315.91-15,617.83-6,600.19

Finding the Fourth Proportional to 11,315.91, 15,617.83 and 6,600.19

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Solution

The fourth proportional to 11,315.91, 15,617.83 and 6,600.19 is: 9,109.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.91 : 15,617.83 = 6,600.19 : x
  2. Step 2: Convert to fraction form
    11,315.91/15,617.83 = 6,600.19/x
  3. Step 3: Cross multiply
    11,315.91x = 15,617.83 × 6,600.19
  4. Step 4: Simplify right side
    11,315.91x = 103,080,653.64
  5. Step 5: Solve for x
    x = 103,080,653.64/11,315.91
  6. Step 6: Final answer
    x = 9,109.36

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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.