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Finding the Fourth Proportional to 12,507, 18,739.71 and 8,801.44

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Solution

The fourth proportional to 12,507, 18,739.71 and 8,801.44 is: 13,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507 : 18,739.71 = 8,801.44 : x
  2. Step 2: Convert to fraction form
    12,507/18,739.71 = 8,801.44/x
  3. Step 3: Cross multiply
    12,507x = 18,739.71 × 8,801.44
  4. Step 4: Simplify right side
    12,507x = 164,936,433.18
  5. Step 5: Solve for x
    x = 164,936,433.18/12,507
  6. Step 6: Final answer
    x = 13,187.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.