Home / 11,113.26-15,336.64-6,864.18

Finding the Fourth Proportional to 11,113.26, 15,336.64 and 6,864.18

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Solution

The fourth proportional to 11,113.26, 15,336.64 and 6,864.18 is: 9,472.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.26 : 15,336.64 = 6,864.18 : x
  2. Step 2: Convert to fraction form
    11,113.26/15,336.64 = 6,864.18/x
  3. Step 3: Cross multiply
    11,113.26x = 15,336.64 × 6,864.18
  4. Step 4: Simplify right side
    11,113.26x = 105,273,457.56
  5. Step 5: Solve for x
    x = 105,273,457.56/11,113.26
  6. Step 6: Final answer
    x = 9,472.78

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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.