Home / 7,845.75-10,827.14-4,309.20

Finding the Fourth Proportional to 7,845.75, 10,827.14 and 4,309.20

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Solution

The fourth proportional to 7,845.75, 10,827.14 and 4,309.20 is: 5,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.75 : 10,827.14 = 4,309.20 : x
  2. Step 2: Convert to fraction form
    7,845.75/10,827.14 = 4,309.20/x
  3. Step 3: Cross multiply
    7,845.75x = 10,827.14 × 4,309.20
  4. Step 4: Simplify right side
    7,845.75x = 46,656,290.14
  5. Step 5: Solve for x
    x = 46,656,290.14/7,845.75
  6. Step 6: Final answer
    x = 5,946.70

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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.