Home / 13,280.60-18,334.86-8,810.42

Finding the Fourth Proportional to 13,280.60, 18,334.86 and 8,810.42

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Solution

The fourth proportional to 13,280.60, 18,334.86 and 8,810.42 is: 12,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.60 : 18,334.86 = 8,810.42 : x
  2. Step 2: Convert to fraction form
    13,280.60/18,334.86 = 8,810.42/x
  3. Step 3: Cross multiply
    13,280.60x = 18,334.86 × 8,810.42
  4. Step 4: Simplify right side
    13,280.60x = 161,537,692.53
  5. Step 5: Solve for x
    x = 161,537,692.53/13,280.60
  6. Step 6: Final answer
    x = 12,163.43

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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.