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Finding the Fourth Proportional to 11,312.52, 15,611.02 and 6,276.67

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Solution

The fourth proportional to 11,312.52, 15,611.02 and 6,276.67 is: 8,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.52 : 15,611.02 = 6,276.67 : x
  2. Step 2: Convert to fraction form
    11,312.52/15,611.02 = 6,276.67/x
  3. Step 3: Cross multiply
    11,312.52x = 15,611.02 × 6,276.67
  4. Step 4: Simplify right side
    11,312.52x = 97,985,251.96
  5. Step 5: Solve for x
    x = 97,985,251.96/11,312.52
  6. Step 6: Final answer
    x = 8,661.66

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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.