Home / 13,276.94-18,322.70-7,309.16

Finding the Fourth Proportional to 13,276.94, 18,322.70 and 7,309.16

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Solution

The fourth proportional to 13,276.94, 18,322.70 and 7,309.16 is: 10,086.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.94 : 18,322.70 = 7,309.16 : x
  2. Step 2: Convert to fraction form
    13,276.94/18,322.70 = 7,309.16/x
  3. Step 3: Cross multiply
    13,276.94x = 18,322.70 × 7,309.16
  4. Step 4: Simplify right side
    13,276.94x = 133,923,630.66
  5. Step 5: Solve for x
    x = 133,923,630.66/13,276.94
  6. Step 6: Final answer
    x = 10,086.93

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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.