Home / 13,483.61-20,221.45-5,162.99

Finding the Fourth Proportional to 13,483.61, 20,221.45 and 5,162.99

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Solution

The fourth proportional to 13,483.61, 20,221.45 and 5,162.99 is: 7,742.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.61 : 20,221.45 = 5,162.99 : x
  2. Step 2: Convert to fraction form
    13,483.61/20,221.45 = 5,162.99/x
  3. Step 3: Cross multiply
    13,483.61x = 20,221.45 × 5,162.99
  4. Step 4: Simplify right side
    13,483.61x = 104,403,143.87
  5. Step 5: Solve for x
    x = 104,403,143.87/13,483.61
  6. Step 6: Final answer
    x = 7,742.96

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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.