Home / 13,581.61-18,725.10-8,793.07

Finding the Fourth Proportional to 13,581.61, 18,725.10 and 8,793.07

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Solution

The fourth proportional to 13,581.61, 18,725.10 and 8,793.07 is: 12,123.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.61 : 18,725.10 = 8,793.07 : x
  2. Step 2: Convert to fraction form
    13,581.61/18,725.10 = 8,793.07/x
  3. Step 3: Cross multiply
    13,581.61x = 18,725.10 × 8,793.07
  4. Step 4: Simplify right side
    13,581.61x = 164,651,115.06
  5. Step 5: Solve for x
    x = 164,651,115.06/13,581.61
  6. Step 6: Final answer
    x = 12,123.09

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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.