Home / 11,440.04-15,781.68-7,196.36

Finding the Fourth Proportional to 11,440.04, 15,781.68 and 7,196.36

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Solution

The fourth proportional to 11,440.04, 15,781.68 and 7,196.36 is: 9,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.04 : 15,781.68 = 7,196.36 : x
  2. Step 2: Convert to fraction form
    11,440.04/15,781.68 = 7,196.36/x
  3. Step 3: Cross multiply
    11,440.04x = 15,781.68 × 7,196.36
  4. Step 4: Simplify right side
    11,440.04x = 113,570,650.68
  5. Step 5: Solve for x
    x = 113,570,650.68/11,440.04
  6. Step 6: Final answer
    x = 9,927.47

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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.