Home / 11,219.54-15,482.76-6,115.10

Finding the Fourth Proportional to 11,219.54, 15,482.76 and 6,115.10

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Solution

The fourth proportional to 11,219.54, 15,482.76 and 6,115.10 is: 8,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.54 : 15,482.76 = 6,115.10 : x
  2. Step 2: Convert to fraction form
    11,219.54/15,482.76 = 6,115.10/x
  3. Step 3: Cross multiply
    11,219.54x = 15,482.76 × 6,115.10
  4. Step 4: Simplify right side
    11,219.54x = 94,678,679.67
  5. Step 5: Solve for x
    x = 94,678,679.67/11,219.54
  6. Step 6: Final answer
    x = 8,438.73

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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.