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Finding the Fourth Proportional to 14,984.82, 20,686.05 and 8,695.98

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Solution

The fourth proportional to 14,984.82, 20,686.05 and 8,695.98 is: 12,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,984.82 : 20,686.05 = 8,695.98 : x
  2. Step 2: Convert to fraction form
    14,984.82/20,686.05 = 8,695.98/x
  3. Step 3: Cross multiply
    14,984.82x = 20,686.05 × 8,695.98
  4. Step 4: Simplify right side
    14,984.82x = 179,885,477.08
  5. Step 5: Solve for x
    x = 179,885,477.08/14,984.82
  6. Step 6: Final answer
    x = 12,004.51

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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.