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Finding the Fourth Proportional to 14,460.60, 19,954.86 and 8,172.60

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Solution

The fourth proportional to 14,460.60, 19,954.86 and 8,172.60 is: 11,277.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,460.60 : 19,954.86 = 8,172.60 : x
  2. Step 2: Convert to fraction form
    14,460.60/19,954.86 = 8,172.60/x
  3. Step 3: Cross multiply
    14,460.60x = 19,954.86 × 8,172.60
  4. Step 4: Simplify right side
    14,460.60x = 163,083,088.84
  5. Step 5: Solve for x
    x = 163,083,088.84/14,460.60
  6. Step 6: Final answer
    x = 11,277.75

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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.