Home / 13,263.90-18,300.87-8,542.50

Finding the Fourth Proportional to 13,263.90, 18,300.87 and 8,542.50

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Solution

The fourth proportional to 13,263.90, 18,300.87 and 8,542.50 is: 11,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.90 : 18,300.87 = 8,542.50 : x
  2. Step 2: Convert to fraction form
    13,263.90/18,300.87 = 8,542.50/x
  3. Step 3: Cross multiply
    13,263.90x = 18,300.87 × 8,542.50
  4. Step 4: Simplify right side
    13,263.90x = 156,335,181.98
  5. Step 5: Solve for x
    x = 156,335,181.98/13,263.90
  6. Step 6: Final answer
    x = 11,786.52

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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.