Home / 13,432.32-18,536.94-8,124.12

Finding the Fourth Proportional to 13,432.32, 18,536.94 and 8,124.12

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Solution

The fourth proportional to 13,432.32, 18,536.94 and 8,124.12 is: 11,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.32 : 18,536.94 = 8,124.12 : x
  2. Step 2: Convert to fraction form
    13,432.32/18,536.94 = 8,124.12/x
  3. Step 3: Cross multiply
    13,432.32x = 18,536.94 × 8,124.12
  4. Step 4: Simplify right side
    13,432.32x = 150,596,324.99
  5. Step 5: Solve for x
    x = 150,596,324.99/13,432.32
  6. Step 6: Final answer
    x = 11,211.49

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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.