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Finding the Fourth Proportional to 8,702.22, 12,009.09 and 4,723.34

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Solution

The fourth proportional to 8,702.22, 12,009.09 and 4,723.34 is: 6,518.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.22 : 12,009.09 = 4,723.34 : x
  2. Step 2: Convert to fraction form
    8,702.22/12,009.09 = 4,723.34/x
  3. Step 3: Cross multiply
    8,702.22x = 12,009.09 × 4,723.34
  4. Step 4: Simplify right side
    8,702.22x = 56,722,955.12
  5. Step 5: Solve for x
    x = 56,722,955.12/8,702.22
  6. Step 6: Final answer
    x = 6,518.22

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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.