Home / 13,902.47-19,190.08-8,451.52

Finding the Fourth Proportional to 13,902.47, 19,190.08 and 8,451.52

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Solution

The fourth proportional to 13,902.47, 19,190.08 and 8,451.52 is: 11,665.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.47 : 19,190.08 = 8,451.52 : x
  2. Step 2: Convert to fraction form
    13,902.47/19,190.08 = 8,451.52/x
  3. Step 3: Cross multiply
    13,902.47x = 19,190.08 × 8,451.52
  4. Step 4: Simplify right side
    13,902.47x = 162,185,344.92
  5. Step 5: Solve for x
    x = 162,185,344.92/13,902.47
  6. Step 6: Final answer
    x = 11,665.94

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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.