Home / 18,657.12-25,752.24-14,906.40

Finding the Fourth Proportional to 18,657.12, 25,752.24 and 14,906.40

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Solution

The fourth proportional to 18,657.12, 25,752.24 and 14,906.40 is: 20,575.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,657.12 : 25,752.24 = 14,906.40 : x
  2. Step 2: Convert to fraction form
    18,657.12/25,752.24 = 14,906.40/x
  3. Step 3: Cross multiply
    18,657.12x = 25,752.24 × 14,906.40
  4. Step 4: Simplify right side
    18,657.12x = 383,873,190.34
  5. Step 5: Solve for x
    x = 383,873,190.34/18,657.12
  6. Step 6: Final answer
    x = 20,575.16

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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.