Home / 15,511.41-21,406.23-8,797.32

Finding the Fourth Proportional to 15,511.41, 21,406.23 and 8,797.32

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Solution

The fourth proportional to 15,511.41, 21,406.23 and 8,797.32 is: 12,140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,511.41 : 21,406.23 = 8,797.32 : x
  2. Step 2: Convert to fraction form
    15,511.41/21,406.23 = 8,797.32/x
  3. Step 3: Cross multiply
    15,511.41x = 21,406.23 × 8,797.32
  4. Step 4: Simplify right side
    15,511.41x = 188,317,455.30
  5. Step 5: Solve for x
    x = 188,317,455.30/15,511.41
  6. Step 6: Final answer
    x = 12,140.58

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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.