Home / 11,316.35-15,612.27-8,339.28

Finding the Fourth Proportional to 11,316.35, 15,612.27 and 8,339.28

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Solution

The fourth proportional to 11,316.35, 15,612.27 and 8,339.28 is: 11,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.35 : 15,612.27 = 8,339.28 : x
  2. Step 2: Convert to fraction form
    11,316.35/15,612.27 = 8,339.28/x
  3. Step 3: Cross multiply
    11,316.35x = 15,612.27 × 8,339.28
  4. Step 4: Simplify right side
    11,316.35x = 130,195,150.84
  5. Step 5: Solve for x
    x = 130,195,150.84/11,316.35
  6. Step 6: Final answer
    x = 11,505.05

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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.