Home / 7,805.66-11,708.55-3,126.06

Finding the Fourth Proportional to 7,805.66, 11,708.55 and 3,126.06

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Solution

The fourth proportional to 7,805.66, 11,708.55 and 3,126.06 is: 4,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,805.66 : 11,708.55 = 3,126.06 : x
  2. Step 2: Convert to fraction form
    7,805.66/11,708.55 = 3,126.06/x
  3. Step 3: Cross multiply
    7,805.66x = 11,708.55 × 3,126.06
  4. Step 4: Simplify right side
    7,805.66x = 36,601,629.81
  5. Step 5: Solve for x
    x = 36,601,629.81/7,805.66
  6. Step 6: Final answer
    x = 4,689.12

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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.