Home / 10,258.20-14,157.97-7,743.15

Finding the Fourth Proportional to 10,258.20, 14,157.97 and 7,743.15

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Solution

The fourth proportional to 10,258.20, 14,157.97 and 7,743.15 is: 10,686.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258.20 : 14,157.97 = 7,743.15 : x
  2. Step 2: Convert to fraction form
    10,258.20/14,157.97 = 7,743.15/x
  3. Step 3: Cross multiply
    10,258.20x = 14,157.97 × 7,743.15
  4. Step 4: Simplify right side
    10,258.20x = 109,627,266.05
  5. Step 5: Solve for x
    x = 109,627,266.05/10,258.20
  6. Step 6: Final answer
    x = 10,686.79

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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.