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Finding the Fourth Proportional to 18,564.74, 25,620.71 and 10,606.80

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Solution

The fourth proportional to 18,564.74, 25,620.71 and 10,606.80 is: 14,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,564.74 : 25,620.71 = 10,606.80 : x
  2. Step 2: Convert to fraction form
    18,564.74/25,620.71 = 10,606.80/x
  3. Step 3: Cross multiply
    18,564.74x = 25,620.71 × 10,606.80
  4. Step 4: Simplify right side
    18,564.74x = 271,753,645.76
  5. Step 5: Solve for x
    x = 271,753,645.76/18,564.74
  6. Step 6: Final answer
    x = 14,638.16

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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.