Home / 13,383.20-20,075.11-4,498.65

Finding the Fourth Proportional to 13,383.20, 20,075.11 and 4,498.65

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Solution

The fourth proportional to 13,383.20, 20,075.11 and 4,498.65 is: 6,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.20 : 20,075.11 = 4,498.65 : x
  2. Step 2: Convert to fraction form
    13,383.20/20,075.11 = 4,498.65/x
  3. Step 3: Cross multiply
    13,383.20x = 20,075.11 × 4,498.65
  4. Step 4: Simplify right side
    13,383.20x = 90,310,882.35
  5. Step 5: Solve for x
    x = 90,310,882.35/13,383.20
  6. Step 6: Final answer
    x = 6,748.08

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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.