Home / 10,515.72-14,486.94-8,716.44

Finding the Fourth Proportional to 10,515.72, 14,486.94 and 8,716.44

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Solution

The fourth proportional to 10,515.72, 14,486.94 and 8,716.44 is: 12,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.72 : 14,486.94 = 8,716.44 : x
  2. Step 2: Convert to fraction form
    10,515.72/14,486.94 = 8,716.44/x
  3. Step 3: Cross multiply
    10,515.72x = 14,486.94 × 8,716.44
  4. Step 4: Simplify right side
    10,515.72x = 126,274,543.29
  5. Step 5: Solve for x
    x = 126,274,543.29/10,515.72
  6. Step 6: Final answer
    x = 12,008.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.