Home / 13,459.35-20,184.84-6,435.66

Finding the Fourth Proportional to 13,459.35, 20,184.84 and 6,435.66

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Solution

The fourth proportional to 13,459.35, 20,184.84 and 6,435.66 is: 9,651.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.35 : 20,184.84 = 6,435.66 : x
  2. Step 2: Convert to fraction form
    13,459.35/20,184.84 = 6,435.66/x
  3. Step 3: Cross multiply
    13,459.35x = 20,184.84 × 6,435.66
  4. Step 4: Simplify right side
    13,459.35x = 129,902,767.39
  5. Step 5: Solve for x
    x = 129,902,767.39/13,459.35
  6. Step 6: Final answer
    x = 9,651.49

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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.