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Finding the Fourth Proportional to 14,643.54, 20,208.08 and 9,341.42

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Solution

The fourth proportional to 14,643.54, 20,208.08 and 9,341.42 is: 12,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.54 : 20,208.08 = 9,341.42 : x
  2. Step 2: Convert to fraction form
    14,643.54/20,208.08 = 9,341.42/x
  3. Step 3: Cross multiply
    14,643.54x = 20,208.08 × 9,341.42
  4. Step 4: Simplify right side
    14,643.54x = 188,772,084.99
  5. Step 5: Solve for x
    x = 188,772,084.99/14,643.54
  6. Step 6: Final answer
    x = 12,891.15

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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.