Home / 13,383.68-18,492.45-12,910.64

Finding the Fourth Proportional to 13,383.68, 18,492.45 and 12,910.64

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Solution

The fourth proportional to 13,383.68, 18,492.45 and 12,910.64 is: 17,838.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.68 : 18,492.45 = 12,910.64 : x
  2. Step 2: Convert to fraction form
    13,383.68/18,492.45 = 12,910.64/x
  3. Step 3: Cross multiply
    13,383.68x = 18,492.45 × 12,910.64
  4. Step 4: Simplify right side
    13,383.68x = 238,749,364.67
  5. Step 5: Solve for x
    x = 238,749,364.67/13,383.68
  6. Step 6: Final answer
    x = 17,838.84

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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.