Home / 10,390.34-14,335.12-5,912.97

Finding the Fourth Proportional to 10,390.34, 14,335.12 and 5,912.97

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Solution

The fourth proportional to 10,390.34, 14,335.12 and 5,912.97 is: 8,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.34 : 14,335.12 = 5,912.97 : x
  2. Step 2: Convert to fraction form
    10,390.34/14,335.12 = 5,912.97/x
  3. Step 3: Cross multiply
    10,390.34x = 14,335.12 × 5,912.97
  4. Step 4: Simplify right side
    10,390.34x = 84,763,135.52
  5. Step 5: Solve for x
    x = 84,763,135.52/10,390.34
  6. Step 6: Final answer
    x = 8,157.88

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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.