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Finding the Fourth Proportional to 12,877.48, 17,749.80 and 8,627.08

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Solution

The fourth proportional to 12,877.48, 17,749.80 and 8,627.08 is: 11,891.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,877.48 : 17,749.80 = 8,627.08 : x
  2. Step 2: Convert to fraction form
    12,877.48/17,749.80 = 8,627.08/x
  3. Step 3: Cross multiply
    12,877.48x = 17,749.80 × 8,627.08
  4. Step 4: Simplify right side
    12,877.48x = 153,128,944.58
  5. Step 5: Solve for x
    x = 153,128,944.58/12,877.48
  6. Step 6: Final answer
    x = 11,891.22

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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.