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Finding the Fourth Proportional to 14,918.40, 22,334.40 and 14,486.40

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Solution

The fourth proportional to 14,918.40, 22,334.40 and 14,486.40 is: 21,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,918.40 : 22,334.40 = 14,486.40 : x
  2. Step 2: Convert to fraction form
    14,918.40/22,334.40 = 14,486.40/x
  3. Step 3: Cross multiply
    14,918.40x = 22,334.40 × 14,486.40
  4. Step 4: Simplify right side
    14,918.40x = 323,545,052.16
  5. Step 5: Solve for x
    x = 323,545,052.16/14,918.40
  6. Step 6: Final answer
    x = 21,687.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.