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Finding the Third Proportional to 9,130 and 13,370

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Solution

The third proportional to 9,130 and 13,370 is: 19,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130 : 13,370 = 13,370 : x
  2. Step 2: Convert to fraction form
    9,130/13,370 = 13,370/x
  3. Step 3: Cross multiply
    9,130x = 13,370 × 13,370
  4. Step 4: Simplify right side
    9,130x = 178,756,900
  5. Step 5: Solve for x
    x = 178,756,900/9,130
  6. Step 6: Final answer
    x = 19,579.07

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.