Home / 8,237.06-11,344.32-7,117.64

Finding the Fourth Proportional to 8,237.06, 11,344.32 and 7,117.64

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Solution

The fourth proportional to 8,237.06, 11,344.32 and 7,117.64 is: 9,802.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237.06 : 11,344.32 = 7,117.64 : x
  2. Step 2: Convert to fraction form
    8,237.06/11,344.32 = 7,117.64/x
  3. Step 3: Cross multiply
    8,237.06x = 11,344.32 × 7,117.64
  4. Step 4: Simplify right side
    8,237.06x = 80,744,785.80
  5. Step 5: Solve for x
    x = 80,744,785.80/8,237.06
  6. Step 6: Final answer
    x = 9,802.62

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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.