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Finding the Fourth Proportional to 14,280.54, 19,716.78 and 8,905.08

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Solution

The fourth proportional to 14,280.54, 19,716.78 and 8,905.08 is: 12,295.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.54 : 19,716.78 = 8,905.08 : x
  2. Step 2: Convert to fraction form
    14,280.54/19,716.78 = 8,905.08/x
  3. Step 3: Cross multiply
    14,280.54x = 19,716.78 × 8,905.08
  4. Step 4: Simplify right side
    14,280.54x = 175,579,503.24
  5. Step 5: Solve for x
    x = 175,579,503.24/14,280.54
  6. Step 6: Final answer
    x = 12,295.02

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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.