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Finding the Third Proportional to 12,320 and 14,560

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Solution

The third proportional to 12,320 and 14,560 is: 17,207.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320 : 14,560 = 14,560 : x
  2. Step 2: Convert to fraction form
    12,320/14,560 = 14,560/x
  3. Step 3: Cross multiply
    12,320x = 14,560 × 14,560
  4. Step 4: Simplify right side
    12,320x = 211,993,600
  5. Step 5: Solve for x
    x = 211,993,600/12,320
  6. Step 6: Final answer
    x = 17,207.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.