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Finding the Third Proportional to 7 and 15.13

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Solution

The third proportional to 7 and 15.13 is: 32.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7 : 15.13 = 15.13 : x
  2. Step 2: Convert to fraction form
    7/15.13 = 15.13/x
  3. Step 3: Cross multiply
    7x = 15.13 × 15.13
  4. Step 4: Simplify right side
    7x = 228.77
  5. Step 5: Solve for x
    x = 228.77/7
  6. Step 6: Final answer
    x = 32.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.