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Finding the Fourth Proportional to 14,477.58, 19,980.02 and 8,104.73

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Solution

The fourth proportional to 14,477.58, 19,980.02 and 8,104.73 is: 11,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,477.58 : 19,980.02 = 8,104.73 : x
  2. Step 2: Convert to fraction form
    14,477.58/19,980.02 = 8,104.73/x
  3. Step 3: Cross multiply
    14,477.58x = 19,980.02 × 8,104.73
  4. Step 4: Simplify right side
    14,477.58x = 161,932,737.71
  5. Step 5: Solve for x
    x = 161,932,737.71/14,477.58
  6. Step 6: Final answer
    x = 11,185.07

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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.