Home / 13,260.41-18,296.61-7,884.76

Finding the Fourth Proportional to 13,260.41, 18,296.61 and 7,884.76

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Solution

The fourth proportional to 13,260.41, 18,296.61 and 7,884.76 is: 10,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.41 : 18,296.61 = 7,884.76 : x
  2. Step 2: Convert to fraction form
    13,260.41/18,296.61 = 7,884.76/x
  3. Step 3: Cross multiply
    13,260.41x = 18,296.61 × 7,884.76
  4. Step 4: Simplify right side
    13,260.41x = 144,264,378.66
  5. Step 5: Solve for x
    x = 144,264,378.66/13,260.41
  6. Step 6: Final answer
    x = 10,879.33

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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.