Home / 12,587.35-17,370.18-6,922.09

Finding the Fourth Proportional to 12,587.35, 17,370.18 and 6,922.09

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Solution

The fourth proportional to 12,587.35, 17,370.18 and 6,922.09 is: 9,552.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.35 : 17,370.18 = 6,922.09 : x
  2. Step 2: Convert to fraction form
    12,587.35/17,370.18 = 6,922.09/x
  3. Step 3: Cross multiply
    12,587.35x = 17,370.18 × 6,922.09
  4. Step 4: Simplify right side
    12,587.35x = 120,237,949.28
  5. Step 5: Solve for x
    x = 120,237,949.28/12,587.35
  6. Step 6: Final answer
    x = 9,552.28

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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.