Home / 13,775.04-18,998.40-12,003.60

Finding the Fourth Proportional to 13,775.04, 18,998.40 and 12,003.60

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Solution

The fourth proportional to 13,775.04, 18,998.40 and 12,003.60 is: 16,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.04 : 18,998.40 = 12,003.60 : x
  2. Step 2: Convert to fraction form
    13,775.04/18,998.40 = 12,003.60/x
  3. Step 3: Cross multiply
    13,775.04x = 18,998.40 × 12,003.60
  4. Step 4: Simplify right side
    13,775.04x = 228,049,194.24
  5. Step 5: Solve for x
    x = 228,049,194.24/13,775.04
  6. Step 6: Final answer
    x = 16,555.25

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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.