Home / 12,531.72-17,293.80-6,942.72

Finding the Fourth Proportional to 12,531.72, 17,293.80 and 6,942.72

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Solution

The fourth proportional to 12,531.72, 17,293.80 and 6,942.72 is: 9,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.72 : 17,293.80 = 6,942.72 : x
  2. Step 2: Convert to fraction form
    12,531.72/17,293.80 = 6,942.72/x
  3. Step 3: Cross multiply
    12,531.72x = 17,293.80 × 6,942.72
  4. Step 4: Simplify right side
    12,531.72x = 120,066,011.14
  5. Step 5: Solve for x
    x = 120,066,011.14/12,531.72
  6. Step 6: Final answer
    x = 9,580.97

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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.