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Finding the Fourth Proportional to 18,117.72, 25,002.72 and 10,563.84

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Solution

The fourth proportional to 18,117.72, 25,002.72 and 10,563.84 is: 14,578.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.72 : 25,002.72 = 10,563.84 : x
  2. Step 2: Convert to fraction form
    18,117.72/25,002.72 = 10,563.84/x
  3. Step 3: Cross multiply
    18,117.72x = 25,002.72 × 10,563.84
  4. Step 4: Simplify right side
    18,117.72x = 264,124,733.64
  5. Step 5: Solve for x
    x = 264,124,733.64/18,117.72
  6. Step 6: Final answer
    x = 14,578.25

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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.