Home / 12,260.48-18,379.78-4,861.13

Finding the Fourth Proportional to 12,260.48, 18,379.78 and 4,861.13

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Solution

The fourth proportional to 12,260.48, 18,379.78 and 4,861.13 is: 7,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.48 : 18,379.78 = 4,861.13 : x
  2. Step 2: Convert to fraction form
    12,260.48/18,379.78 = 4,861.13/x
  3. Step 3: Cross multiply
    12,260.48x = 18,379.78 × 4,861.13
  4. Step 4: Simplify right side
    12,260.48x = 89,346,395.90
  5. Step 5: Solve for x
    x = 89,346,395.90/12,260.48
  6. Step 6: Final answer
    x = 7,287.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.