Home / 13,432.94-18,537.86-8,124.71

Finding the Fourth Proportional to 13,432.94, 18,537.86 and 8,124.71

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Solution

The fourth proportional to 13,432.94, 18,537.86 and 8,124.71 is: 11,212.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.94 : 18,537.86 = 8,124.71 : x
  2. Step 2: Convert to fraction form
    13,432.94/18,537.86 = 8,124.71/x
  3. Step 3: Cross multiply
    13,432.94x = 18,537.86 × 8,124.71
  4. Step 4: Simplify right side
    13,432.94x = 150,614,664.14
  5. Step 5: Solve for x
    x = 150,614,664.14/13,432.94
  6. Step 6: Final answer
    x = 11,212.34

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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.