Home / 6,971.26-9,621.02-3,987.53

Finding the Fourth Proportional to 6,971.26, 9,621.02 and 3,987.53

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Solution

The fourth proportional to 6,971.26, 9,621.02 and 3,987.53 is: 5,503.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,971.26 : 9,621.02 = 3,987.53 : x
  2. Step 2: Convert to fraction form
    6,971.26/9,621.02 = 3,987.53/x
  3. Step 3: Cross multiply
    6,971.26x = 9,621.02 × 3,987.53
  4. Step 4: Simplify right side
    6,971.26x = 38,364,105.88
  5. Step 5: Solve for x
    x = 38,364,105.88/6,971.26
  6. Step 6: Final answer
    x = 5,503.18

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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.