Home / 14,862.90-20,511.64-8,816.73

Finding the Fourth Proportional to 14,862.90, 20,511.64 and 8,816.73

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Solution

The fourth proportional to 14,862.90, 20,511.64 and 8,816.73 is: 12,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,862.90 : 20,511.64 = 8,816.73 : x
  2. Step 2: Convert to fraction form
    14,862.90/20,511.64 = 8,816.73/x
  3. Step 3: Cross multiply
    14,862.90x = 20,511.64 × 8,816.73
  4. Step 4: Simplify right side
    14,862.90x = 180,845,591.74
  5. Step 5: Solve for x
    x = 180,845,591.74/14,862.90
  6. Step 6: Final answer
    x = 12,167.58

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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.