Home / 13,478.73-20,208.52-5,151.73

Finding the Fourth Proportional to 13,478.73, 20,208.52 and 5,151.73

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Solution

The fourth proportional to 13,478.73, 20,208.52 and 5,151.73 is: 7,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.73 : 20,208.52 = 5,151.73 : x
  2. Step 2: Convert to fraction form
    13,478.73/20,208.52 = 5,151.73/x
  3. Step 3: Cross multiply
    13,478.73x = 20,208.52 × 5,151.73
  4. Step 4: Simplify right side
    13,478.73x = 104,108,838.74
  5. Step 5: Solve for x
    x = 104,108,838.74/13,478.73
  6. Step 6: Final answer
    x = 7,723.94

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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.