Home / 11,005.60-15,187.38-6,225.70

Finding the Fourth Proportional to 11,005.60, 15,187.38 and 6,225.70

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Solution

The fourth proportional to 11,005.60, 15,187.38 and 6,225.70 is: 8,591.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.60 : 15,187.38 = 6,225.70 : x
  2. Step 2: Convert to fraction form
    11,005.60/15,187.38 = 6,225.70/x
  3. Step 3: Cross multiply
    11,005.60x = 15,187.38 × 6,225.70
  4. Step 4: Simplify right side
    11,005.60x = 94,552,071.67
  5. Step 5: Solve for x
    x = 94,552,071.67/11,005.60
  6. Step 6: Final answer
    x = 8,591.27

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Half scale
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Double scale
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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.