Home / 13,891.53-20,840.88-5,006.51

Finding the Fourth Proportional to 13,891.53, 20,840.88 and 5,006.51

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Solution

The fourth proportional to 13,891.53, 20,840.88 and 5,006.51 is: 7,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.53 : 20,840.88 = 5,006.51 : x
  2. Step 2: Convert to fraction form
    13,891.53/20,840.88 = 5,006.51/x
  3. Step 3: Cross multiply
    13,891.53x = 20,840.88 × 5,006.51
  4. Step 4: Simplify right side
    13,891.53x = 104,339,944.89
  5. Step 5: Solve for x
    x = 104,339,944.89/13,891.53
  6. Step 6: Final answer
    x = 7,511.05

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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.