Home / 11,312.76-15,611.33-6,276.96

Finding the Fourth Proportional to 11,312.76, 15,611.33 and 6,276.96

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Solution

The fourth proportional to 11,312.76, 15,611.33 and 6,276.96 is: 8,662.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.76 : 15,611.33 = 6,276.96 : x
  2. Step 2: Convert to fraction form
    11,312.76/15,611.33 = 6,276.96/x
  3. Step 3: Cross multiply
    11,312.76x = 15,611.33 × 6,276.96
  4. Step 4: Simplify right side
    11,312.76x = 97,991,662.57
  5. Step 5: Solve for x
    x = 97,991,662.57/11,312.76
  6. Step 6: Final answer
    x = 8,662.05

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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.