Home / 13,475.34-18,596.33-8,439.09

Finding the Fourth Proportional to 13,475.34, 18,596.33 and 8,439.09

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Solution

The fourth proportional to 13,475.34, 18,596.33 and 8,439.09 is: 11,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.34 : 18,596.33 = 8,439.09 : x
  2. Step 2: Convert to fraction form
    13,475.34/18,596.33 = 8,439.09/x
  3. Step 3: Cross multiply
    13,475.34x = 18,596.33 × 8,439.09
  4. Step 4: Simplify right side
    13,475.34x = 156,936,069.72
  5. Step 5: Solve for x
    x = 156,936,069.72/13,475.34
  6. Step 6: Final answer
    x = 11,646.17

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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.