Home / 13,202.57-18,181.16-12,358.36

Finding the Fourth Proportional to 13,202.57, 18,181.16 and 12,358.36

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Solution

The fourth proportional to 13,202.57, 18,181.16 and 12,358.36 is: 17,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.57 : 18,181.16 = 12,358.36 : x
  2. Step 2: Convert to fraction form
    13,202.57/18,181.16 = 12,358.36/x
  3. Step 3: Cross multiply
    13,202.57x = 18,181.16 × 12,358.36
  4. Step 4: Simplify right side
    13,202.57x = 224,689,327.78
  5. Step 5: Solve for x
    x = 224,689,327.78/13,202.57
  6. Step 6: Final answer
    x = 17,018.60

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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.