Home / 14,220.63-19,627.38-8,911.62

Finding the Fourth Proportional to 14,220.63, 19,627.38 and 8,911.62

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Solution

The fourth proportional to 14,220.63, 19,627.38 and 8,911.62 is: 12,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.63 : 19,627.38 = 8,911.62 : x
  2. Step 2: Convert to fraction form
    14,220.63/19,627.38 = 8,911.62/x
  3. Step 3: Cross multiply
    14,220.63x = 19,627.38 × 8,911.62
  4. Step 4: Simplify right side
    14,220.63x = 174,911,752.16
  5. Step 5: Solve for x
    x = 174,911,752.16/14,220.63
  6. Step 6: Final answer
    x = 12,299.86

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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.