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Finding the Fourth Proportional to 8,883, 12,259.62 and 5,157

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Solution

The fourth proportional to 8,883, 12,259.62 and 5,157 is: 7,117.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883 : 12,259.62 = 5,157 : x
  2. Step 2: Convert to fraction form
    8,883/12,259.62 = 5,157/x
  3. Step 3: Cross multiply
    8,883x = 12,259.62 × 5,157
  4. Step 4: Simplify right side
    8,883x = 63,222,860.34
  5. Step 5: Solve for x
    x = 63,222,860.34/8,883
  6. Step 6: Final answer
    x = 7,117.29

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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.