Home / 11,401.28-15,735.12-6,925.76

Finding the Fourth Proportional to 11,401.28, 15,735.12 and 6,925.76

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Solution

The fourth proportional to 11,401.28, 15,735.12 and 6,925.76 is: 9,558.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,401.28 : 15,735.12 = 6,925.76 : x
  2. Step 2: Convert to fraction form
    11,401.28/15,735.12 = 6,925.76/x
  3. Step 3: Cross multiply
    11,401.28x = 15,735.12 × 6,925.76
  4. Step 4: Simplify right side
    11,401.28x = 108,977,664.69
  5. Step 5: Solve for x
    x = 108,977,664.69/11,401.28
  6. Step 6: Final answer
    x = 9,558.37

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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.