Home / 8,721.51-13,085.76-3,175.24

Finding the Fourth Proportional to 8,721.51, 13,085.76 and 3,175.24

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Solution

The fourth proportional to 8,721.51, 13,085.76 and 3,175.24 is: 4,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.51 : 13,085.76 = 3,175.24 : x
  2. Step 2: Convert to fraction form
    8,721.51/13,085.76 = 3,175.24/x
  3. Step 3: Cross multiply
    8,721.51x = 13,085.76 × 3,175.24
  4. Step 4: Simplify right side
    8,721.51x = 41,550,395.87
  5. Step 5: Solve for x
    x = 41,550,395.87/8,721.51
  6. Step 6: Final answer
    x = 4,764.13

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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.