Home / 10,731.40-14,811.10-6,257.76

Finding the Fourth Proportional to 10,731.40, 14,811.10 and 6,257.76

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Solution

The fourth proportional to 10,731.40, 14,811.10 and 6,257.76 is: 8,636.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,731.40 : 14,811.10 = 6,257.76 : x
  2. Step 2: Convert to fraction form
    10,731.40/14,811.10 = 6,257.76/x
  3. Step 3: Cross multiply
    10,731.40x = 14,811.10 × 6,257.76
  4. Step 4: Simplify right side
    10,731.40x = 92,684,309.14
  5. Step 5: Solve for x
    x = 92,684,309.14/10,731.40
  6. Step 6: Final answer
    x = 8,636.74

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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.