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Finding the Fourth Proportional to 18,114.12, 27,141.84 and 14,828.76

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Solution

The fourth proportional to 18,114.12, 27,141.84 and 14,828.76 is: 22,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.12 : 27,141.84 = 14,828.76 : x
  2. Step 2: Convert to fraction form
    18,114.12/27,141.84 = 14,828.76/x
  3. Step 3: Cross multiply
    18,114.12x = 27,141.84 × 14,828.76
  4. Step 4: Simplify right side
    18,114.12x = 402,479,831.32
  5. Step 5: Solve for x
    x = 402,479,831.32/18,114.12
  6. Step 6: Final answer
    x = 22,219.12

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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.