Home / 13,206.52-18,219.90-8,493.40

Finding the Fourth Proportional to 13,206.52, 18,219.90 and 8,493.40

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Solution

The fourth proportional to 13,206.52, 18,219.90 and 8,493.40 is: 11,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.52 : 18,219.90 = 8,493.40 : x
  2. Step 2: Convert to fraction form
    13,206.52/18,219.90 = 8,493.40/x
  3. Step 3: Cross multiply
    13,206.52x = 18,219.90 × 8,493.40
  4. Step 4: Simplify right side
    13,206.52x = 154,748,898.66
  5. Step 5: Solve for x
    x = 154,748,898.66/13,206.52
  6. Step 6: Final answer
    x = 11,717.61

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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.