Home / 13,435.68-18,498.88-12,190.11

Finding the Fourth Proportional to 13,435.68, 18,498.88 and 12,190.11

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Solution

The fourth proportional to 13,435.68, 18,498.88 and 12,190.11 is: 16,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.68 : 18,498.88 = 12,190.11 : x
  2. Step 2: Convert to fraction form
    13,435.68/18,498.88 = 12,190.11/x
  3. Step 3: Cross multiply
    13,435.68x = 18,498.88 × 12,190.11
  4. Step 4: Simplify right side
    13,435.68x = 225,503,483.63
  5. Step 5: Solve for x
    x = 225,503,483.63/13,435.68
  6. Step 6: Final answer
    x = 16,783.93

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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.