Home / 11,215.64-15,477.36-6,180.32

Finding the Fourth Proportional to 11,215.64, 15,477.36 and 6,180.32

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Solution

The fourth proportional to 11,215.64, 15,477.36 and 6,180.32 is: 8,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.64 : 15,477.36 = 6,180.32 : x
  2. Step 2: Convert to fraction form
    11,215.64/15,477.36 = 6,180.32/x
  3. Step 3: Cross multiply
    11,215.64x = 15,477.36 × 6,180.32
  4. Step 4: Simplify right side
    11,215.64x = 95,655,037.56
  5. Step 5: Solve for x
    x = 95,655,037.56/11,215.64
  6. Step 6: Final answer
    x = 8,528.72

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Half scale
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Double scale
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Similar ratio
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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.