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Finding the Third Proportional to 10,420 and 15,926

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Solution

The third proportional to 10,420 and 15,926 is: 24,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420 : 15,926 = 15,926 : x
  2. Step 2: Convert to fraction form
    10,420/15,926 = 15,926/x
  3. Step 3: Cross multiply
    10,420x = 15,926 × 15,926
  4. Step 4: Simplify right side
    10,420x = 253,637,476
  5. Step 5: Solve for x
    x = 253,637,476/10,420
  6. Step 6: Final answer
    x = 24,341.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.