Home / 12,743.64-17,567.68-8,955.48

Finding the Fourth Proportional to 12,743.64, 17,567.68 and 8,955.48

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Solution

The fourth proportional to 12,743.64, 17,567.68 and 8,955.48 is: 12,345.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.64 : 17,567.68 = 8,955.48 : x
  2. Step 2: Convert to fraction form
    12,743.64/17,567.68 = 8,955.48/x
  3. Step 3: Cross multiply
    12,743.64x = 17,567.68 × 8,955.48
  4. Step 4: Simplify right side
    12,743.64x = 157,327,006.89
  5. Step 5: Solve for x
    x = 157,327,006.89/12,743.64
  6. Step 6: Final answer
    x = 12,345.53

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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.