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Finding the Fourth Proportional to 14,773, 20,385.14 and 8,486.28

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Solution

The fourth proportional to 14,773, 20,385.14 and 8,486.28 is: 11,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,773 : 20,385.14 = 8,486.28 : x
  2. Step 2: Convert to fraction form
    14,773/20,385.14 = 8,486.28/x
  3. Step 3: Cross multiply
    14,773x = 20,385.14 × 8,486.28
  4. Step 4: Simplify right side
    14,773x = 172,994,005.88
  5. Step 5: Solve for x
    x = 172,994,005.88/14,773
  6. Step 6: Final answer
    x = 11,710.15

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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.