Home / 13,260.25-18,296.03-7,956.77

Finding the Fourth Proportional to 13,260.25, 18,296.03 and 7,956.77

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Solution

The fourth proportional to 13,260.25, 18,296.03 and 7,956.77 is: 10,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.25 : 18,296.03 = 7,956.77 : x
  2. Step 2: Convert to fraction form
    13,260.25/18,296.03 = 7,956.77/x
  3. Step 3: Cross multiply
    13,260.25x = 18,296.03 × 7,956.77
  4. Step 4: Simplify right side
    13,260.25x = 145,577,262.84
  5. Step 5: Solve for x
    x = 145,577,262.84/13,260.25
  6. Step 6: Final answer
    x = 10,978.47

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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.