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Finding the Fourth Proportional to 8,312.60, 11,047.01 and 8,312.60

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Solution

The fourth proportional to 8,312.60, 11,047.01 and 8,312.60 is: 11,047.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.60 : 11,047.01 = 8,312.60 : x
  2. Step 2: Convert to fraction form
    8,312.60/11,047.01 = 8,312.60/x
  3. Step 3: Cross multiply
    8,312.60x = 11,047.01 × 8,312.60
  4. Step 4: Simplify right side
    8,312.60x = 91,829,375.33
  5. Step 5: Solve for x
    x = 91,829,375.33/8,312.60
  6. Step 6: Final answer
    x = 11,047.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.