Home / 11,234.85-15,501.69-6,455.39

Finding the Fourth Proportional to 11,234.85, 15,501.69 and 6,455.39

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Solution

The fourth proportional to 11,234.85, 15,501.69 and 6,455.39 is: 8,907.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,234.85 : 15,501.69 = 6,455.39 : x
  2. Step 2: Convert to fraction form
    11,234.85/15,501.69 = 6,455.39/x
  3. Step 3: Cross multiply
    11,234.85x = 15,501.69 × 6,455.39
  4. Step 4: Simplify right side
    11,234.85x = 100,069,377.10
  5. Step 5: Solve for x
    x = 100,069,377.10/11,234.85
  6. Step 6: Final answer
    x = 8,907.05

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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.