Home / 18,488.01-25,513.05-11,315.46

Finding the Fourth Proportional to 18,488.01, 25,513.05 and 11,315.46

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Solution

The fourth proportional to 18,488.01, 25,513.05 and 11,315.46 is: 15,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.01 : 25,513.05 = 11,315.46 : x
  2. Step 2: Convert to fraction form
    18,488.01/25,513.05 = 11,315.46/x
  3. Step 3: Cross multiply
    18,488.01x = 25,513.05 × 11,315.46
  4. Step 4: Simplify right side
    18,488.01x = 288,691,896.75
  5. Step 5: Solve for x
    x = 288,691,896.75/18,488.01
  6. Step 6: Final answer
    x = 15,615.09

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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.