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Finding the Fourth Proportional to 18,569.05, 25,610.99 and 12,903.71

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Solution

The fourth proportional to 18,569.05, 25,610.99 and 12,903.71 is: 17,797.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.05 : 25,610.99 = 12,903.71 : x
  2. Step 2: Convert to fraction form
    18,569.05/25,610.99 = 12,903.71/x
  3. Step 3: Cross multiply
    18,569.05x = 25,610.99 × 12,903.71
  4. Step 4: Simplify right side
    18,569.05x = 330,476,595.20
  5. Step 5: Solve for x
    x = 330,476,595.20/18,569.05
  6. Step 6: Final answer
    x = 17,797.18

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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.