Home / 12,353.34-18,508.32-10,286.64

Finding the Fourth Proportional to 12,353.34, 18,508.32 and 10,286.64

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Solution

The fourth proportional to 12,353.34, 18,508.32 and 10,286.64 is: 15,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.34 : 18,508.32 = 10,286.64 : x
  2. Step 2: Convert to fraction form
    12,353.34/18,508.32 = 10,286.64/x
  3. Step 3: Cross multiply
    12,353.34x = 18,508.32 × 10,286.64
  4. Step 4: Simplify right side
    12,353.34x = 190,388,424.84
  5. Step 5: Solve for x
    x = 190,388,424.84/12,353.34
  6. Step 6: Final answer
    x = 15,411.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.