Home / 10,716.30-14,781.39-8,474.63

Finding the Fourth Proportional to 10,716.30, 14,781.39 and 8,474.63

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Solution

The fourth proportional to 10,716.30, 14,781.39 and 8,474.63 is: 11,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,716.30 : 14,781.39 = 8,474.63 : x
  2. Step 2: Convert to fraction form
    10,716.30/14,781.39 = 8,474.63/x
  3. Step 3: Cross multiply
    10,716.30x = 14,781.39 × 8,474.63
  4. Step 4: Simplify right side
    10,716.30x = 125,266,705.45
  5. Step 5: Solve for x
    x = 125,266,705.45/10,716.30
  6. Step 6: Final answer
    x = 11,689.36

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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.