Home / 13,298.21-18,352.37-7,329.87

Finding the Fourth Proportional to 13,298.21, 18,352.37 and 7,329.87

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Solution

The fourth proportional to 13,298.21, 18,352.37 and 7,329.87 is: 10,115.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.21 : 18,352.37 = 7,329.87 : x
  2. Step 2: Convert to fraction form
    13,298.21/18,352.37 = 7,329.87/x
  3. Step 3: Cross multiply
    13,298.21x = 18,352.37 × 7,329.87
  4. Step 4: Simplify right side
    13,298.21x = 134,520,449.64
  5. Step 5: Solve for x
    x = 134,520,449.64/13,298.21
  6. Step 6: Final answer
    x = 10,115.68

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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.