Home / 12,606.34-17,383.85-8,355.92

Finding the Fourth Proportional to 12,606.34, 17,383.85 and 8,355.92

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Solution

The fourth proportional to 12,606.34, 17,383.85 and 8,355.92 is: 11,522.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.34 : 17,383.85 = 8,355.92 : x
  2. Step 2: Convert to fraction form
    12,606.34/17,383.85 = 8,355.92/x
  3. Step 3: Cross multiply
    12,606.34x = 17,383.85 × 8,355.92
  4. Step 4: Simplify right side
    12,606.34x = 145,258,124.24
  5. Step 5: Solve for x
    x = 145,258,124.24/12,606.34
  6. Step 6: Final answer
    x = 11,522.63

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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.