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Finding the Fourth Proportional to 11.63, 17.58 and 11.52

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Solution

The fourth proportional to 11.63, 17.58 and 11.52 is: 17.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11.63 : 17.58 = 11.52 : x
  2. Step 2: Convert to fraction form
    11.63/17.58 = 11.52/x
  3. Step 3: Cross multiply
    11.63x = 17.58 × 11.52
  4. Step 4: Simplify right side
    11.63x = 202.52
  5. Step 5: Solve for x
    x = 202.52/11.63
  6. Step 6: Final answer
    x = 17.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.