Home / 13,511.04-18,633.60-8,793.60

Finding the Fourth Proportional to 13,511.04, 18,633.60 and 8,793.60

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Solution

The fourth proportional to 13,511.04, 18,633.60 and 8,793.60 is: 12,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.04 : 18,633.60 = 8,793.60 : x
  2. Step 2: Convert to fraction form
    13,511.04/18,633.60 = 8,793.60/x
  3. Step 3: Cross multiply
    13,511.04x = 18,633.60 × 8,793.60
  4. Step 4: Simplify right side
    13,511.04x = 163,856,424.96
  5. Step 5: Solve for x
    x = 163,856,424.96/13,511.04
  6. Step 6: Final answer
    x = 12,127.60

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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.