Home / 12,747.88-17,582.34-9,222.76

Finding the Fourth Proportional to 12,747.88, 17,582.34 and 9,222.76

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Solution

The fourth proportional to 12,747.88, 17,582.34 and 9,222.76 is: 12,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.88 : 17,582.34 = 9,222.76 : x
  2. Step 2: Convert to fraction form
    12,747.88/17,582.34 = 9,222.76/x
  3. Step 3: Cross multiply
    12,747.88x = 17,582.34 × 9,222.76
  4. Step 4: Simplify right side
    12,747.88x = 162,157,702.06
  5. Step 5: Solve for x
    x = 162,157,702.06/12,747.88
  6. Step 6: Final answer
    x = 12,720.37

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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.