Home / 13,200.03-18,214.02-8,163.81

Finding the Fourth Proportional to 13,200.03, 18,214.02 and 8,163.81

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Solution

The fourth proportional to 13,200.03, 18,214.02 and 8,163.81 is: 11,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.03 : 18,214.02 = 8,163.81 : x
  2. Step 2: Convert to fraction form
    13,200.03/18,214.02 = 8,163.81/x
  3. Step 3: Cross multiply
    13,200.03x = 18,214.02 × 8,163.81
  4. Step 4: Simplify right side
    13,200.03x = 148,695,798.62
  5. Step 5: Solve for x
    x = 148,695,798.62/13,200.03
  6. Step 6: Final answer
    x = 11,264.81

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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.