Home / 13,511.21-20,264.45-6,113.93

Finding the Fourth Proportional to 13,511.21, 20,264.45 and 6,113.93

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Solution

The fourth proportional to 13,511.21, 20,264.45 and 6,113.93 is: 9,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.21 : 20,264.45 = 6,113.93 : x
  2. Step 2: Convert to fraction form
    13,511.21/20,264.45 = 6,113.93/x
  3. Step 3: Cross multiply
    13,511.21x = 20,264.45 × 6,113.93
  4. Step 4: Simplify right side
    13,511.21x = 123,895,296.90
  5. Step 5: Solve for x
    x = 123,895,296.90/13,511.21
  6. Step 6: Final answer
    x = 9,169.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.