Home / 17,985.60-26,970.30-8,119.80

Finding the Fourth Proportional to 17,985.60, 26,970.30 and 8,119.80

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Solution

The fourth proportional to 17,985.60, 26,970.30 and 8,119.80 is: 12,176.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.60 : 26,970.30 = 8,119.80 : x
  2. Step 2: Convert to fraction form
    17,985.60/26,970.30 = 8,119.80/x
  3. Step 3: Cross multiply
    17,985.60x = 26,970.30 × 8,119.80
  4. Step 4: Simplify right side
    17,985.60x = 218,993,441.94
  5. Step 5: Solve for x
    x = 218,993,441.94/17,985.60
  6. Step 6: Final answer
    x = 12,176.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.