Home / 18,771.79-25,897.69-12,056.48

Finding the Fourth Proportional to 18,771.79, 25,897.69 and 12,056.48

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Solution

The fourth proportional to 18,771.79, 25,897.69 and 12,056.48 is: 16,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.79 : 25,897.69 = 12,056.48 : x
  2. Step 2: Convert to fraction form
    18,771.79/25,897.69 = 12,056.48/x
  3. Step 3: Cross multiply
    18,771.79x = 25,897.69 × 12,056.48
  4. Step 4: Simplify right side
    18,771.79x = 312,234,981.53
  5. Step 5: Solve for x
    x = 312,234,981.53/18,771.79
  6. Step 6: Final answer
    x = 16,633.20

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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.