Home / 11,182.58-15,432.39-6,403.28

Finding the Fourth Proportional to 11,182.58, 15,432.39 and 6,403.28

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Solution

The fourth proportional to 11,182.58, 15,432.39 and 6,403.28 is: 8,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.58 : 15,432.39 = 6,403.28 : x
  2. Step 2: Convert to fraction form
    11,182.58/15,432.39 = 6,403.28/x
  3. Step 3: Cross multiply
    11,182.58x = 15,432.39 × 6,403.28
  4. Step 4: Simplify right side
    11,182.58x = 98,817,914.24
  5. Step 5: Solve for x
    x = 98,817,914.24/11,182.58
  6. Step 6: Final answer
    x = 8,836.77

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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.