Home / 13,475.20-18,585.84-8,996.80

Finding the Fourth Proportional to 13,475.20, 18,585.84 and 8,996.80

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Solution

The fourth proportional to 13,475.20, 18,585.84 and 8,996.80 is: 12,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.20 : 18,585.84 = 8,996.80 : x
  2. Step 2: Convert to fraction form
    13,475.20/18,585.84 = 8,996.80/x
  3. Step 3: Cross multiply
    13,475.20x = 18,585.84 × 8,996.80
  4. Step 4: Simplify right side
    13,475.20x = 167,213,085.31
  5. Step 5: Solve for x
    x = 167,213,085.31/13,475.20
  6. Step 6: Final answer
    x = 12,408.95

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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.