Home / 13,513.89-20,281.23-8,832.63

Finding the Fourth Proportional to 13,513.89, 20,281.23 and 8,832.63

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Solution

The fourth proportional to 13,513.89, 20,281.23 and 8,832.63 is: 13,255.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.89 : 20,281.23 = 8,832.63 : x
  2. Step 2: Convert to fraction form
    13,513.89/20,281.23 = 8,832.63/x
  3. Step 3: Cross multiply
    13,513.89x = 20,281.23 × 8,832.63
  4. Step 4: Simplify right side
    13,513.89x = 179,136,600.53
  5. Step 5: Solve for x
    x = 179,136,600.53/13,513.89
  6. Step 6: Final answer
    x = 13,255.74

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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.