Home / 6,512.76-8,987.40-3,718.26

Finding the Fourth Proportional to 6,512.76, 8,987.40 and 3,718.26

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Solution

The fourth proportional to 6,512.76, 8,987.40 and 3,718.26 is: 5,131.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,512.76 : 8,987.40 = 3,718.26 : x
  2. Step 2: Convert to fraction form
    6,512.76/8,987.40 = 3,718.26/x
  3. Step 3: Cross multiply
    6,512.76x = 8,987.40 × 3,718.26
  4. Step 4: Simplify right side
    6,512.76x = 33,417,489.92
  5. Step 5: Solve for x
    x = 33,417,489.92/6,512.76
  6. Step 6: Final answer
    x = 5,131.08

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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.