Home / 14,506.18-20,018.54-8,218.55

Finding the Fourth Proportional to 14,506.18, 20,018.54 and 8,218.55

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Solution

The fourth proportional to 14,506.18, 20,018.54 and 8,218.55 is: 11,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.18 : 20,018.54 = 8,218.55 : x
  2. Step 2: Convert to fraction form
    14,506.18/20,018.54 = 8,218.55/x
  3. Step 3: Cross multiply
    14,506.18x = 20,018.54 × 8,218.55
  4. Step 4: Simplify right side
    14,506.18x = 164,523,371.92
  5. Step 5: Solve for x
    x = 164,523,371.92/14,506.18
  6. Step 6: Final answer
    x = 11,341.61

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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.