Home / 8,139.28-11,228.33-4,736.29

Finding the Fourth Proportional to 8,139.28, 11,228.33 and 4,736.29

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Solution

The fourth proportional to 8,139.28, 11,228.33 and 4,736.29 is: 6,533.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.28 : 11,228.33 = 4,736.29 : x
  2. Step 2: Convert to fraction form
    8,139.28/11,228.33 = 4,736.29/x
  3. Step 3: Cross multiply
    8,139.28x = 11,228.33 × 4,736.29
  4. Step 4: Simplify right side
    8,139.28x = 53,180,603.41
  5. Step 5: Solve for x
    x = 53,180,603.41/8,139.28
  6. Step 6: Final answer
    x = 6,533.82

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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.