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Finding the Fourth Proportional to 8,753.88, 12,090.43 and 6,374.49

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Solution

The fourth proportional to 8,753.88, 12,090.43 and 6,374.49 is: 8,804.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.88 : 12,090.43 = 6,374.49 : x
  2. Step 2: Convert to fraction form
    8,753.88/12,090.43 = 6,374.49/x
  3. Step 3: Cross multiply
    8,753.88x = 12,090.43 × 6,374.49
  4. Step 4: Simplify right side
    8,753.88x = 77,070,325.13
  5. Step 5: Solve for x
    x = 77,070,325.13/8,753.88
  6. Step 6: Final answer
    x = 8,804.13

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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.