Home / 8,511.40-11,745.70-4,973.91

Finding the Fourth Proportional to 8,511.40, 11,745.70 and 4,973.91

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Solution

The fourth proportional to 8,511.40, 11,745.70 and 4,973.91 is: 6,863.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.40 : 11,745.70 = 4,973.91 : x
  2. Step 2: Convert to fraction form
    8,511.40/11,745.70 = 4,973.91/x
  3. Step 3: Cross multiply
    8,511.40x = 11,745.70 × 4,973.91
  4. Step 4: Simplify right side
    8,511.40x = 58,422,054.69
  5. Step 5: Solve for x
    x = 58,422,054.69/8,511.40
  6. Step 6: Final answer
    x = 6,863.98

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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.