Home / 8,971.23-12,397.37-6,729.22

Finding the Fourth Proportional to 8,971.23, 12,397.37 and 6,729.22

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Solution

The fourth proportional to 8,971.23, 12,397.37 and 6,729.22 is: 9,299.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.23 : 12,397.37 = 6,729.22 : x
  2. Step 2: Convert to fraction form
    8,971.23/12,397.37 = 6,729.22/x
  3. Step 3: Cross multiply
    8,971.23x = 12,397.37 × 6,729.22
  4. Step 4: Simplify right side
    8,971.23x = 83,424,630.15
  5. Step 5: Solve for x
    x = 83,424,630.15/8,971.23
  6. Step 6: Final answer
    x = 9,299.13

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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.