Home / 13,277.36-18,322.65-7,309.13

Finding the Fourth Proportional to 13,277.36, 18,322.65 and 7,309.13

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Solution

The fourth proportional to 13,277.36, 18,322.65 and 7,309.13 is: 10,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.36 : 18,322.65 = 7,309.13 : x
  2. Step 2: Convert to fraction form
    13,277.36/18,322.65 = 7,309.13/x
  3. Step 3: Cross multiply
    13,277.36x = 18,322.65 × 7,309.13
  4. Step 4: Simplify right side
    13,277.36x = 133,922,539.18
  5. Step 5: Solve for x
    x = 133,922,539.18/13,277.36
  6. Step 6: Final answer
    x = 10,086.54

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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.