Home / 7,845.88-10,827.30-4,309.12

Finding the Fourth Proportional to 7,845.88, 10,827.30 and 4,309.12

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Solution

The fourth proportional to 7,845.88, 10,827.30 and 4,309.12 is: 5,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.88 : 10,827.30 = 4,309.12 : x
  2. Step 2: Convert to fraction form
    7,845.88/10,827.30 = 4,309.12/x
  3. Step 3: Cross multiply
    7,845.88x = 10,827.30 × 4,309.12
  4. Step 4: Simplify right side
    7,845.88x = 46,656,134.98
  5. Step 5: Solve for x
    x = 46,656,134.98/7,845.88
  6. Step 6: Final answer
    x = 5,946.58

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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.