Home / 13,185.59-18,199.08-8,154.68

Finding the Fourth Proportional to 13,185.59, 18,199.08 and 8,154.68

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Solution

The fourth proportional to 13,185.59, 18,199.08 and 8,154.68 is: 11,255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.59 : 18,199.08 = 8,154.68 : x
  2. Step 2: Convert to fraction form
    13,185.59/18,199.08 = 8,154.68/x
  3. Step 3: Cross multiply
    13,185.59x = 18,199.08 × 8,154.68
  4. Step 4: Simplify right side
    13,185.59x = 148,407,582.70
  5. Step 5: Solve for x
    x = 148,407,582.70/13,185.59
  6. Step 6: Final answer
    x = 11,255.29

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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.