Home / 7,707.30-11,556.09-4,781.58

Finding the Fourth Proportional to 7,707.30, 11,556.09 and 4,781.58

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Solution

The fourth proportional to 7,707.30, 11,556.09 and 4,781.58 is: 7,169.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.30 : 11,556.09 = 4,781.58 : x
  2. Step 2: Convert to fraction form
    7,707.30/11,556.09 = 4,781.58/x
  3. Step 3: Cross multiply
    7,707.30x = 11,556.09 × 4,781.58
  4. Step 4: Simplify right side
    7,707.30x = 55,256,368.82
  5. Step 5: Solve for x
    x = 55,256,368.82/7,707.30
  6. Step 6: Final answer
    x = 7,169.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.