Home / 13,277.60-18,322.80-7,309.04

Finding the Fourth Proportional to 13,277.60, 18,322.80 and 7,309.04

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Solution

The fourth proportional to 13,277.60, 18,322.80 and 7,309.04 is: 10,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.60 : 18,322.80 = 7,309.04 : x
  2. Step 2: Convert to fraction form
    13,277.60/18,322.80 = 7,309.04/x
  3. Step 3: Cross multiply
    13,277.60x = 18,322.80 × 7,309.04
  4. Step 4: Simplify right side
    13,277.60x = 133,922,078.11
  5. Step 5: Solve for x
    x = 133,922,078.11/13,277.60
  6. Step 6: Final answer
    x = 10,086.32

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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.