Home / 10,716.40-14,788.20-6,240.28

Finding the Fourth Proportional to 10,716.40, 14,788.20 and 6,240.28

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Solution

The fourth proportional to 10,716.40, 14,788.20 and 6,240.28 is: 8,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,716.40 : 14,788.20 = 6,240.28 : x
  2. Step 2: Convert to fraction form
    10,716.40/14,788.20 = 6,240.28/x
  3. Step 3: Cross multiply
    10,716.40x = 14,788.20 × 6,240.28
  4. Step 4: Simplify right side
    10,716.40x = 92,282,508.70
  5. Step 5: Solve for x
    x = 92,282,508.70/10,716.40
  6. Step 6: Final answer
    x = 8,611.33

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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.