Home / 12,792.35-17,651.43-7,125.32

Finding the Fourth Proportional to 12,792.35, 17,651.43 and 7,125.32

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Solution

The fourth proportional to 12,792.35, 17,651.43 and 7,125.32 is: 9,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.35 : 17,651.43 = 7,125.32 : x
  2. Step 2: Convert to fraction form
    12,792.35/17,651.43 = 7,125.32/x
  3. Step 3: Cross multiply
    12,792.35x = 17,651.43 × 7,125.32
  4. Step 4: Simplify right side
    12,792.35x = 125,771,998.95
  5. Step 5: Solve for x
    x = 125,771,998.95/12,792.35
  6. Step 6: Final answer
    x = 9,831.82

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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.