Home / 8,142.79-11,237.25-4,557.72

Finding the Fourth Proportional to 8,142.79, 11,237.25 and 4,557.72

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Solution

The fourth proportional to 8,142.79, 11,237.25 and 4,557.72 is: 6,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.79 : 11,237.25 = 4,557.72 : x
  2. Step 2: Convert to fraction form
    8,142.79/11,237.25 = 4,557.72/x
  3. Step 3: Cross multiply
    8,142.79x = 11,237.25 × 4,557.72
  4. Step 4: Simplify right side
    8,142.79x = 51,216,160.10
  5. Step 5: Solve for x
    x = 51,216,160.10/8,142.79
  6. Step 6: Final answer
    x = 6,289.76

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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.