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Finding the Fourth Proportional to 15.16, 22.64 and 15.04

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Solution

The fourth proportional to 15.16, 22.64 and 15.04 is: 22.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15.16 : 22.64 = 15.04 : x
  2. Step 2: Convert to fraction form
    15.16/22.64 = 15.04/x
  3. Step 3: Cross multiply
    15.16x = 22.64 × 15.04
  4. Step 4: Simplify right side
    15.16x = 340.51
  5. Step 5: Solve for x
    x = 340.51/15.16
  6. Step 6: Final answer
    x = 22.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.