Home / 13,322.14-18,382.24-7,655.56

Finding the Fourth Proportional to 13,322.14, 18,382.24 and 7,655.56

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Solution

The fourth proportional to 13,322.14, 18,382.24 and 7,655.56 is: 10,563.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.14 : 18,382.24 = 7,655.56 : x
  2. Step 2: Convert to fraction form
    13,322.14/18,382.24 = 7,655.56/x
  3. Step 3: Cross multiply
    13,322.14x = 18,382.24 × 7,655.56
  4. Step 4: Simplify right side
    13,322.14x = 140,726,341.25
  5. Step 5: Solve for x
    x = 140,726,341.25/13,322.14
  6. Step 6: Final answer
    x = 10,563.34

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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.