Home / 18,463.86-25,476.75-12,172.50

Finding the Fourth Proportional to 18,463.86, 25,476.75 and 12,172.50

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Solution

The fourth proportional to 18,463.86, 25,476.75 and 12,172.50 is: 16,795.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.86 : 25,476.75 = 12,172.50 : x
  2. Step 2: Convert to fraction form
    18,463.86/25,476.75 = 12,172.50/x
  3. Step 3: Cross multiply
    18,463.86x = 25,476.75 × 12,172.50
  4. Step 4: Simplify right side
    18,463.86x = 310,115,739.38
  5. Step 5: Solve for x
    x = 310,115,739.38/18,463.86
  6. Step 6: Final answer
    x = 16,795.82

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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.