Home / 13,532.67-18,669.90-8,225.55

Finding the Fourth Proportional to 13,532.67, 18,669.90 and 8,225.55

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Solution

The fourth proportional to 13,532.67, 18,669.90 and 8,225.55 is: 11,348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,532.67 : 18,669.90 = 8,225.55 : x
  2. Step 2: Convert to fraction form
    13,532.67/18,669.90 = 8,225.55/x
  3. Step 3: Cross multiply
    13,532.67x = 18,669.90 × 8,225.55
  4. Step 4: Simplify right side
    13,532.67x = 153,570,195.95
  5. Step 5: Solve for x
    x = 153,570,195.95/13,532.67
  6. Step 6: Final answer
    x = 11,348.11

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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.