Home / 11,215.83-15,477.21-6,179.07

Finding the Fourth Proportional to 11,215.83, 15,477.21 and 6,179.07

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Solution

The fourth proportional to 11,215.83, 15,477.21 and 6,179.07 is: 8,526.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.83 : 15,477.21 = 6,179.07 : x
  2. Step 2: Convert to fraction form
    11,215.83/15,477.21 = 6,179.07/x
  3. Step 3: Cross multiply
    11,215.83x = 15,477.21 × 6,179.07
  4. Step 4: Simplify right side
    11,215.83x = 95,634,763.99
  5. Step 5: Solve for x
    x = 95,634,763.99/11,215.83
  6. Step 6: Final answer
    x = 8,526.77

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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.