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Finding the Fourth Proportional to 12,648.08, 17,455.56 and 9,012.08

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Solution

The fourth proportional to 12,648.08, 17,455.56 and 9,012.08 is: 12,437.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.08 : 17,455.56 = 9,012.08 : x
  2. Step 2: Convert to fraction form
    12,648.08/17,455.56 = 9,012.08/x
  3. Step 3: Cross multiply
    12,648.08x = 17,455.56 × 9,012.08
  4. Step 4: Simplify right side
    12,648.08x = 157,310,903.16
  5. Step 5: Solve for x
    x = 157,310,903.16/12,648.08
  6. Step 6: Final answer
    x = 12,437.53

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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.