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Finding the Fourth Proportional to 14,855, 20,502.30 and 8,566.28

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Solution

The fourth proportional to 14,855, 20,502.30 and 8,566.28 is: 11,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855 : 20,502.30 = 8,566.28 : x
  2. Step 2: Convert to fraction form
    14,855/20,502.30 = 8,566.28/x
  3. Step 3: Cross multiply
    14,855x = 20,502.30 × 8,566.28
  4. Step 4: Simplify right side
    14,855x = 175,628,442.44
  5. Step 5: Solve for x
    x = 175,628,442.44/14,855
  6. Step 6: Final answer
    x = 11,822.85

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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.