Home / 8,143.91-11,237.28-4,955.48

Finding the Fourth Proportional to 8,143.91, 11,237.28 and 4,955.48

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Solution

The fourth proportional to 8,143.91, 11,237.28 and 4,955.48 is: 6,837.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.91 : 11,237.28 = 4,955.48 : x
  2. Step 2: Convert to fraction form
    8,143.91/11,237.28 = 4,955.48/x
  3. Step 3: Cross multiply
    8,143.91x = 11,237.28 × 4,955.48
  4. Step 4: Simplify right side
    8,143.91x = 55,686,060.11
  5. Step 5: Solve for x
    x = 55,686,060.11/8,143.91
  6. Step 6: Final answer
    x = 6,837.76

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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.