Home / 13,842.66-20,763.99-12,461.79

Finding the Fourth Proportional to 13,842.66, 20,763.99 and 12,461.79

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Solution

The fourth proportional to 13,842.66, 20,763.99 and 12,461.79 is: 18,692.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.66 : 20,763.99 = 12,461.79 : x
  2. Step 2: Convert to fraction form
    13,842.66/20,763.99 = 12,461.79/x
  3. Step 3: Cross multiply
    13,842.66x = 20,763.99 × 12,461.79
  4. Step 4: Simplify right side
    13,842.66x = 258,756,482.94
  5. Step 5: Solve for x
    x = 258,756,482.94/13,842.66
  6. Step 6: Final answer
    x = 18,692.69

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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.