Home / 13,551.17-20,326.77-8,900.55

Finding the Fourth Proportional to 13,551.17, 20,326.77 and 8,900.55

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Solution

The fourth proportional to 13,551.17, 20,326.77 and 8,900.55 is: 13,350.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.17 : 20,326.77 = 8,900.55 : x
  2. Step 2: Convert to fraction form
    13,551.17/20,326.77 = 8,900.55/x
  3. Step 3: Cross multiply
    13,551.17x = 20,326.77 × 8,900.55
  4. Step 4: Simplify right side
    13,551.17x = 180,919,432.72
  5. Step 5: Solve for x
    x = 180,919,432.72/13,551.17
  6. Step 6: Final answer
    x = 13,350.84

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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.